TRẦN NGỌC KHÁNH NHƯ

Trắc nghiệm Bài 1: Đơn thức và đa thức nhiều biến

<strong class="question-index-number"><a href="/bai-tap-141207.html">Câu 1</a> : </strong>
                    <p>Cho đơn thức \(A = \left( {2{a^2} + \frac{1}{{{a^2}}}} \right){x^2}{y^4}{z^6}\)\(\left( {a \ne 0} \right)\). Chọn khẳng định đúng:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        Giá trị của \(A\) luôn không âm với mọi \(x\), \(y\), \(z\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        Nếu \(A = 0\) thì \(x = y = z = 0\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        Chỉ có 1 giá trị của \(x\) để \(A = 0\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        Chỉ có 1 giá trị của \(y\) để \(A = 0\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Ta xét dấu của các hệ số và các biến.</p><p>\({x^2} \ge 0;\,\,{y^4} \ge 0;\,\,{z^6} \ge 0\,\,\, \Rightarrow \,\,{x^2}{y^4}{z^6} \ge 0\)với mọi \(x;\,y;\,z.\)</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>\(A = \left( {2{a^2} + \frac{1}{{{a^2}}}} \right){x^2}{y^4}{z^6}\,\,\,\left( {a \ne 0} \right).\)</p><p>Ta có: \(2{a^2} + \frac{1}{{{a^2}}} > 0\)với \(a \ne 0.\)</p><p>Lại có: \({x^2} \ge 0;\,\,{y^4} \ge 0;\,\,{z^6} \ge 0\,\,\, \Rightarrow \,\,{x^2}{y^4}{z^6} \ge 0\)với mọi \(x;\,y;\,z.\)</p>                        </div>
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        </div>
        
</div><div class="question c649a520da6052767d059c7be">

<strong class="question-index-number"><a href="/bai-tap-141206.html">Câu 2</a> : </strong>
                    <p>Xác định hằng số \(a\) để các đơn thức \({\rm{ax}}{y^3}{,^{}} - 4{\rm{x}}{y^3}{,^{}}7{\rm{x}}{y^3}\)có tổng bằng \(6x{y^3}\).</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         a = 9.                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        a = 1.	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        a = 3.	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        a = 2.                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Thực hiện cộng các đơn thức rồi cho kết quả hệ số bằng 6. Từ đó tìm ra hằng số a</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có \(ax{y^3} + \left( { - 4{\rm{x}}{y^3}} \right) + 7{\rm{x}}{y^3} = \left( {a - 4 + 7} \right)x{y^3}\)</p><p>Từ giả thiết suy ra: \(a + 3 = 6 \Leftrightarrow a = 6 - 3 \Leftrightarrow a = 3\)</p>                        </div>
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</div><div class="question c649a520da6052767d059c7af">

<strong class="question-index-number"><a href="/bai-tap-141203.html">Câu 3</a> : </strong>
                    <p>Kết quả sau khi thu gọn biểu thức đại số \(9{\left( {{x^2}{y^2}} \right)^2}x - {\left( { - 2xy} \right)^3}{x^2}y + 3{\left( {2x} \right)^4}x{y^4}\)</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(59{x^5}{y^4}\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(49{x^5}{y^4}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(65{x^5}{y^4}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(17{x^5}{y^4}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Thu gọn các đơn thức nhỏ trong biểu thức đại số rồi mới tiến hằng cộng, trừ các đơn thức đồng dạng.</p><p>Áp dụng các công thức \({\left( {{a^m}} \right)^n} = {a^{m.n}}\), \({a^m}.{a^n} = {a^{m + n}}\), \({\left( {x.y} \right)^n} = {x^n}.{y^m}\).</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có \(9{\left( {{x^2}{y^2}} \right)^2}x - {\left( { - 2xy} \right)^3}{x^2}y + 3{\left( {2x} \right)^4}x{y^4}\)\( = 9{\left( {{x^2}} \right)^2}{\left( {{y^2}} \right)^2}x - {\left( { - 2} \right)^3}{x^3}{y^3}{x^2}y + {3.2^4}{x^4}x{y^4}\)</p><p>\( = 9{x^4}{y^4}x - \left( { - 8} \right){x^3}{y^3}{x^2}y + 48{x^4}x{y^4}\)\( = 9{x^5}{y^4} + 8{x^5}{y^4} + 48{x^5}{y^4}\)\( = \left( {9 + 8 + 48} \right){x^5}{y^4}\)\( = 65{x^5}{y^4}\).</p>                        </div>
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</div><div class="question c649a520da6052767d059c7aa">

<strong class="question-index-number"><a href="/bai-tap-141202.html">Câu 4</a> : </strong>
                    <p>Tính giá trị của đơn thức \(5{x^4}{y^2}{z^3}\) tại \(x =  - 1\); \(y =  - 1\); \(z =  - 2\).</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        <p>\(10\).</p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        <p>\(20\).</p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        <p>\( - 40\).</p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        <p>\(40\).</p>                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thay các giá trị x =-1; y = -1; z = -2 vào đơn thức \(5{x^4}{y^2}{z^3}\)                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Thay \(x =  - 1\), \(y =  - 1\), \(z =  - 2\) vào đơn thức \(5{x^4}{y^2}{z^3}\) ta được: \(5.{\left( { - 1} \right)^4}.{\left( { - 1} \right)^2}.{\left( { - 2} \right)^3} =  - 40.\)</p>                        </div>
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</div><div class="question c649a520ca6052767d059c7a5">

<strong class="question-index-number"><a href="/bai-tap-141201.html">Câu 5</a> : </strong>
                    <p><em> </em>Phần biến số của đơn thức \({\left( { - \frac{a}{4}} \right)^2}3xy\left( {4{a^2}{x^2}} \right)\left( {4\frac{1}{2}a{y^2}} \right)\) (với \(a\), \(b\) là hằng số) là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(\frac{{27}}{8}{a^5}{x^3}{y^3}\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \({a^5}{x^3}{y^3}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(\frac{{27}}{8}{a^5}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \({x^3}{y^3}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thu gọn các đơn thức theo quy tắc thu gọn, phần biến là chứa các biến x, y                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                             Ta có: <p>\(\begin{array}{l}{\left( { - \frac{a}{4}} \right)^2}3xy\left( {4{a^2}{x^2}} \right)\left( {4\frac{1}{2}a{y^2}} \right) = \frac{{{a^2}}}{{16}}.3xy.4{a^2}{x^2}.\frac{9}{2}a{y^2}\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \left( {\frac{{{a^2}}}{{16}}.3.4{a^2}.\frac{9}{2}a} \right).{x^3}{y^3}\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{{27}}{8}{a^5}{x^3}{y^3}.\end{array}\)</p><p>Phần biến số của đơn thức đã cho là: \({x^3}{y^3}.\)</p>                        </div>
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        </div>
        
</div><div class="question c649a520ca6052767d059c7a0">

<strong class="question-index-number"><a href="/bai-tap-141200.html">Câu 6</a> : </strong>
                    <p>Hệ số của đơn thức \({\left( {2{x^2}} \right)^2}\left( { - 3{y^3}} \right){\left( { - 5xz} \right)^3}\) là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \( - 1500\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \( - 750\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        30	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        1500                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thu gọn các đơn thức theo quy tắc thu gọn, phần hệ số chứa các số không có biến                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có:</p>
<p>\(\begin{array}{l}{\left( {2{x^2}} \right)^2}\left( { - 3{y^3}} \right){\left( { - 5xz} \right)^3} \\= 4{x^4}.\left( { - 3{y^3}} \right).\left( { - 125{x^3}{z^3}} \right)\\= 4.\left( { - 3} \right).\left( { - 125} \right).{x^4}.{x^3}.{y^3}.{z^3}\\= 1500{x^7}{y^3}{z^3}.\end{array}\)</p>
<p>Hệ số của đơn thức đã cho là \(1500.\)</p>                        </div>
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        </div>
        
</div><div class="question c649a520ca6052767d059c79b">

<strong class="question-index-number"><a href="/bai-tap-141199.html">Câu 7</a> : </strong>
                    <p>Kết quả sau khi thu gọn đơn thức\(1\frac{1}{4}{x^2}y\left( { - \frac{6}{5}xy} \right)\left( { - 2\frac{1}{3}xy} \right)\)  là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        <p>\(\frac{{7}}{{2}}{x^4}{y^3}\).             </p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(\frac{1}{2}{x^3}{y^3}\).                          </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        <p>\(-\frac{{7}}{{2}}{x^4}{y^3}\).             </p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \( - \frac{1}{2}{x^2}{y^2}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thu gọn đơn thức: hệ số nhân với nhau, các biến nhân với nhau                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có:</p>
<p>\(1\frac{1}{4}{x^2}y\left( { - \frac{6}{5}xy} \right)\left( { - 2\frac{1}{3}xy} \right) = \left[ {\frac{5}{4}.\left( { - \frac{6}{5}} \right).\left( {\frac{{ - 7}}{3}} \right)} \right]\left( {{x^2}.x.x} \right).\left( {y.y.y} \right) = \frac{{7}}{{2}}{x^4}{y^3}.\)</p>                        </div>
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        </div>
        
</div><div class="question c649a520ca6052767d059c796">

<strong class="question-index-number"><a href="/bai-tap-141198.html">Câu 8</a> : </strong>
                    <p>Hiệu của hai đơn thức \( - 9{y^2}z\) và \( - 12{y^2}z\) là</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \( - 21{y^2}z\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \( - 3{y^2}z\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(3{y^4}{z^2}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(3{y^2}z\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Sử dụng quy tắc trừ hai đơn thức đồng dạng                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>\( - 9{y^2}z - \left( { - 12{y^2}z} \right) = \left( { - 9 + 12} \right){y^2}z\)\( = 3{y^2}z\).</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c744">

<strong class="question-index-number"><a href="/bai-tap-141197.html">Câu 9</a> : </strong>
                    <p>Tổng các đơn thức \(3{x^2}{y^4}\)và \(7{x^2}{y^4}\) là</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(10{x^2}{y^4}\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(9{x^2}{y^4}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \( - 9{x^2}{y^4}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \( - 4{x^2}{y^4}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Sử dụng quy tắc cộng hai đơn thức đồng dạng                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>\(3{x^2}{y^4} + 7{x^2}{y^4} = \left( {3 + 7} \right){x^2}{y^4} = 10{x^2}{y^4}\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c73f">

<strong class="question-index-number"><a href="/bai-tap-141196.html">Câu 10</a> : </strong>
                    <p>Các đơn thức \( - 10\); \(\frac{1}{3}x\); \(2{x^2}y\); \(5{x^2}.{x^2}\) có bậc lần lượt là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        <p>0; 1; 3; 4.</p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        <p>0; 3; 1; 4.</p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        0; 1; 2; 3.                          </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        0; 1; 3; 2.                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Bậc của đơn thức là tổng các số mũ của biến                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Đơn thức\( - 10\)có bậc là \(0\).</p><p>Đơn thức \(\frac{1}{3}x\) có bậc là \(1.\)</p><p>Đơn thức\(2{x^2}y\) có bậc là \(2 + 1 = 3.\)</p><p>Đơn thức\(5{x^2}.{x^2} = 5{x^4}\) có bậc là \(4.\)</p><p>Các đơn thức \( - 10\); \(\frac{1}{3}x\); \(2{x^2}y\); \(5{x^2}.{x^2}\) có bậc lần lượt là: 0; 1; 3; 4.</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c73a">

<strong class="question-index-number"><a href="/bai-tap-141195.html">Câu 11</a> : </strong>
                    <p>Tìm phần biến trong đơn thức \(100a{b^2}{x^2}yz\) với \(a\), \(b\) là hằng số.</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(a{b^2}{x^2}yz\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \({x^2}y\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \({x^2}yz\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(100ab\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Phần chứa biến là phần biến của đơn thức<strong> </strong>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Đơn thức \(100ab{x^2}yz\) với \(a,b\) là hằng số có phần biến số là: \({x^2}yz\).                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c735">

<strong class="question-index-number"><a href="/bai-tap-141194.html">Câu 12</a> : </strong>
                    <p>Tìm hệ số trong đơn thức \( - 36{a^2}{b^2}{x^2}{y^3}\), với \(a\), \(b\) là hằng số.</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \( - 36\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \( - 36{a^2}{b^2}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(36{a^2}{b^2}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \( - 36{a^2}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Các số, hằng số của đơn thức là hệ số<strong> </strong>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                             Đơn thức \( - 36{a^2}{b^2}{x^2}{y^3}\) với \(a,b\) là hằng số có hệ số là: \( - 36{a^2}{b^2}.\)                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c730">

<strong class="question-index-number"><a href="/bai-tap-141193.html">Câu 13</a> : </strong>
                    <p>Sau khi thu gọn đơn thức \(2.\left( { - 3{x^3}y} \right){y^2}\) ta được đơn thức:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \( - 6{x^3}{y^3}\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(6{x^3}{y^3}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(6{x^3}{y^2}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \( - 6{x^2}{y^3}\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Sử dụng quy tắc nhân hai đơn thức với nhau: Ta nhân các hệ số với nhau, các biến với nhau (chú ý dấu của hệ số và biến)                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có: \(2.\left( { - 3{x^3}y} \right){y^2} = 2.\left( { - 3} \right).{x^3}.y.{y^2} =  - 6{x^3}{y^3}\).</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a85a6052767d059c721">

<strong class="question-index-number"><a href="/bai-tap-141190.html">Câu 14</a> : </strong>
                    <p>Có mấy nhóm đơn thức đồng dạng với nhau trong các đơn thức sau: \( - \frac{2}{3}{x^3}y\); \( - x{y^2}\); \(5{x^2}y\); \(6x{y^2}\); \(2{x^3}y\); \(\frac{3}{4}\); \(\frac{1}{2}{x^2}y\).</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(2\).                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(3\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(4\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(5\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Sử dụng định nghĩa đơn thức đồng dạng: Hai đơn thức đồng dạng là hai đơn thức có hệ số khác \(0\)và có cùng phần biến. Các số khác \(0\) được coi là những đơn thức đồng dạng.</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Có ba nhóm đơn thức đồng dạng trong các đơn thức đã cho gồm :</p>
<p>Nhóm thứ nhất : \( - \frac{2}{3}{x^3}y\), \(2{x^3}y\).</p>
<p>Nhóm thứ hai: \(5{x^2}y\), \(\frac{1}{2}{x^2}y\).</p>
<p>Nhóm thứ ba: \( - x{y^2}\), \(6x{y^2}\).</p>
<p>\( \frac {3}{4} \) không có đơn thức nào đồng dạng.</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a4a84a6052767d059c717">

<strong class="question-index-number"><a href="/bai-tap-141188.html">Câu 15</a> : </strong>
                    <p>Trong các biểu thức đại số sau, biểu thức nào không phải đơn thức?</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        2.                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(5x + 9\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \({x^3}{y^2}\).	                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(3x\).                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Sử dụng định nghĩa đơn thức: Đơn thức là biểu thức đại số chỉ gồm một số, hoặc một biến, hoặc một tích giữa các số và các biến.</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Theo định nghĩa đơn thức thì \(5x + 9\) không là đơn thức.</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8e5">

<strong class="question-index-number"><a href="/bai-tap-141232.html">Câu 16</a> : </strong>
                    <p>Tính giá trị của đa thức \(3{{{x}}^4} + 5{{{x}}^2}{y^2} + 2{y^4} + 2{y^2}\) biết rằng \({x^2} + {y^2} = 2\)</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         6                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         8                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         12                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        0                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Biến đổi đa thức Q để có \({x^2} + {y^2}\)                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Ta có:<p>\(3{{{x}}^4} + 5{{{x}}^2}{y^2} + 2{y^4} + 2{y^2} = (3{{{x}}^4} + 3{{{x}}^2}{y^2}) + (2{{{x}}^2}{y^2} + 2{y^4} + 2{y^2}) = 3{{{x}}^2}\left( {{x^2} + {y^2}} \right) + 2{y^2}\left( {{x^2} + {y^2} + 1} \right)\)</p><p>Mà \({x^2} + {y^2} = 2\) nên ta có: \(3{{{x}}^2}\left( {{x^2} + {y^2}} \right) + 2{y^2}\left( {{x^2} + {y^2} + 1} \right) = 6{{{x}}^2} + 6{y^2} = 6\left( {{x^2} + {y^2}} \right) = 6.2 = 12\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8e0">

<strong class="question-index-number"><a href="/bai-tap-141231.html">Câu 17</a> : </strong>
                    <p>Cho đa thức \(4{{{x}}^5}{y^2} - 5{{{x}}^3}y + 7{{{x}}^3}y + 2{{a}}{{{x}}^5}{y^2}\). Tìm a để bậc đa thức bằng 4.</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         a = 2                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         a = 0                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         a = -2                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         a = 1                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Rút gọn đa thức rồi cho các hệ số của đơn thức có bậc lớn hơn 4 bằng 0.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Ta có:<p>\(\begin{array}{l}4{{{x}}^5}{y^2} - 5{{{x}}^3}y + 7{{{x}}^3}y + 2{{a}}{{{x}}^5}{y^2}\\ = \left( {4{{{x}}^5}{y^2} + 2{{a}}{{{x}}^5}{y^2}} \right) + \left( { - 5{{{x}}^3}y + 7{{{x}}^3}y} \right)\\ = \left( {4 + 2{{a}}} \right){x^5}{y^2} + 2{{{x}}^3}y\end{array}\)</p><p>Để bậc của đa thức đã cho bằng 4 thì \(4 + 2{{a}} = 0 \Leftrightarrow a =  - 2\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8db">

<strong class="question-index-number"><a href="/bai-tap-141230.html">Câu 18</a> : </strong>
                    <p>: Tính giá trị của biểu thức \(A = {{a}}{{{x}}^3}{y^3} + b{{{x}}^2}y + c{{x}}y\) với a, b, c là các hằng số tại </p><p>x = y = -2.</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         64a + 8b + 4c                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         -64a – 8b – 4c                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         64a – 8b + 8c                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         64a – 8b + 4c                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thay các giá trị x = y = -2 vào biểu thức \(A = {{a}}{{{x}}^3}{y^3} + b{{{x}}^2}y + c{{x}}y\)                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Thay các giá trị x = y = -2 vào biểu thức \(A = {{a}}{{{x}}^3}{y^3} + b{{{x}}^2}y + c{{x}}y\) ta được:<p>\(\begin{array}{l}A = a.{\left( { - 2} \right)^3}.{\left( { - 2} \right)^3} + b.{\left( { - 2} \right)^2}.\left( { - 2} \right) + c.\left( { - 2} \right).\left( { - 2} \right)\\A = a.\left( { - 8} \right).\left( { - 8} \right) + b.4.\left( { - 2} \right) + c.4\\A = 64{{a}} - 8b + 4c\end{array}\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8d6">

<strong class="question-index-number"><a href="/bai-tap-141229.html">Câu 19</a> : </strong>
                    <p>Giá trị của đa thức \(Q = {x^2}{y^3} + 2{{{x}}^2} + 4\) như thế nào khi x < 0, y > 0:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         Q = 0                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        Q > 0                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         Q < 0                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         Không xác định được                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Xác định dấu của từng hạng tử trong đa thức.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Vì x < 0, y > 0 nên:<p>\(\begin{array}{l}{x^2}{y^3} > 0\\2{{{x}}^2} > 0\\4 > 0\end{array}\)</p><p>Suy ra \(Q = {x^2}{y^3} + 2{{{x}}^2} + 4 > 0\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8d1">

<strong class="question-index-number"><a href="/bai-tap-141228.html">Câu 20</a> : </strong>
                    <p>Bậc của đa thức \(\left( {{x^2} + {y^2} - 2{{x}}y} \right) - \left( {{x^2} + {y^2} + 2{{x}}y} \right) + \left( {4{{x}}y - 1} \right)\) là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         2                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         1                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         3                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         0                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Rút gọn đa thức rồi tìm bậc của đa thức rút gọn                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có:</p>
<p>\(\begin{array}{l}\left( {{x^2} + {y^2} - 2{{x}}y} \right) - \left( {{x^2} + {y^2} + 2{{x}}y} \right) + \left( {4{{x}}y - 1} \right)\\ = {x^2} + {y^2} - 2{{x}}y - {x^2} - {y^2} - 2{{x}}y + 4{{x}}y - 1\\ = \left( {{x^2} - {x^2}} \right) + \left( {{y^2} - {y^2}} \right) + \left( { - 4{{x}}y + 4{{x}}y} \right) - 1 =  - 1\end{array}\)</p>
<p>Bậc của -1 là 0</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd6a6052767d059c8cc">

<strong class="question-index-number"><a href="/bai-tap-141227.html">Câu 21</a> : </strong>
                    <p>Tìm giá trị của x để Q = 0 biết \(Q = 5{{{x}}^{n + 2}} + 3{{{x}}^n} + 2{{{x}}^{n + 2}} + 4{{{x}}^n} + {x^{n + 2}} + {x^n}\left( {n \in N} \right)\)</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         0                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         1                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         -1                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         0 và 1                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                             Rút gọn đa thức Q rồi cho đa thức Q = 0 từ đó tìm các giá trị của x.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Ta có:<p>\(\begin{array}{l}Q = 5{{{x}}^{n + 2}} + 3{{{x}}^n} + 2{{{x}}^{n + 2}} + 4{{{x}}^n} + {x^{n + 2}} + {x^n}\left( {n \in N} \right)\\Q = 8{{{x}}^{n + 2}} + 8{{{x}}^n} = 8{{{x}}^n}\left( {{x^2} + 1} \right)\end{array}\)</p><p>Vì \({x^2} + 1 > 0\) với mọi x nên \(Q = 0 \Leftrightarrow 8{{{x}}^n}\left( {{x^2} + 1} \right) = 0 \Leftrightarrow x = 0\)</p><p>Vậy x = 0 thì Q = 0</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd5a6052767d059c8c7">

<strong class="question-index-number"><a href="/bai-tap-141226.html">Câu 22</a> : </strong>
                    <p><em> </em>Tìm đa thức P, biết: \(P + \left( {2{{{x}}^2} + 6{{x}}y - 5{y^2}} \right) = 3{{{x}}^2} - 6{{x}}y - 5{y^2}\)</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(P = {x^2} - 12{{x}}y\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(P = {x^2} + 10{y^2}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(P =  - {x^2} - 12{{x}}y + 10{y^2}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(P = 12{{x}}y + 10{y^2}\)                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Áp dụng quy tắc chuyển vế để tìm đa thức P.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                              Ta có:<p>\(\begin{array}{l}P + \left( {2{{{x}}^2} + 6{{x}}y - 5{y^2}} \right) = 3{{{x}}^2} - 6{{x}}y - 5{y^2}\\P = 3{{{x}}^2} - 6{{x}}y - 5{y^2} - 2{{{x}}^2} - 6{{x}}y + 5{y^2}\\P = {x^2} - 12{{x}}y\end{array}\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd5a6052767d059c8c2">

<strong class="question-index-number"><a href="/bai-tap-141225.html">Câu 23</a> : </strong>
                    <p>Giá trị của đa thức \(3{{{x}}^4}{y^5} - 5{{{x}}^3} - 3{{{x}}^4}{y^5}\) tại x = -1; y = 20092008</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         \({20092008^4}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         \({20082009^4}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         -5                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         5                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Rút gọn biểu thức rồi thay giá trị x = 1-; y = 20092008 vào biểu thức                         </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Ta có: \(3{{{x}}^4}{y^5} - 5{{{x}}^3} - 3{{{x}}^4}{y^5} =  - 5{{{x}}^3}\)<p>Thay giá trị x = -1; y = 20092008 vào biểu thức \( - 5{{{x}}^3}\) ta được:</p><p>\( - 5.{\left( { - 1} \right)^3} = 5\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd5a6052767d059c8bd">

<strong class="question-index-number"><a href="/bai-tap-141224.html">Câu 24</a> : </strong>
                    <p>\({x^3} - 3{{x}} + 1\)<strong> tại x thỏa mãn </strong>\(\left( {2{{{x}}^2} + 7} \right)\left( {x + 2} \right) = 0\)<strong> bằng:</strong></p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         10                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         1                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         -1                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         11                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Ta tìm các giá trị của x thỏa mãn \(\left( {2{{{x}}^2} + 7} \right)\left( {x + 2} \right) = 0\)<strong> sau đó thay vào biểu thức.</strong></p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Vì \(2{{{x}}^2} + 7 > 0\) với mọi x nên ta có:<p>\(\left( {2{{{x}}^2} + 7} \right)\left( {x + 2} \right) = 0 \Leftrightarrow x + 2 = 0 \Leftrightarrow x =  - 2\)</p><p><strong>Thay x = -2 vào biểu thức </strong>\({x^3} - 3{{x}} + 1\)<strong> ta được:</strong></p><p>\({\left( { - 2} \right)^3} - 3.\left( { - 2} \right) + 1 =  - 1\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a8fd5a6052767d059c8b8">

<strong class="question-index-number"><a href="/bai-tap-141223.html">Câu 25</a> : </strong>
                    <p>Tính giá trị của đa thức: \(Q = 3{{{x}}^4} + 2{y^4} - 3{{{z}}^2} + 4\) theo x biết \(y = x{;^{}}z = {x^2}\) được kết quả là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(Q = 3{{{x}}^4}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(Q = 3{{{x}}^4} - 4\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(Q =  - 3{{{x}}^4} - 4\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(Q = 2{{{x}}^4} + 4\)                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Thay \(y = x{;^{}}z = {x^2}\) vào đa thức Q rồi tính</p><p>Công thức lũy thừa \({\left( {{x^n}} \right)^m} = {x^{n.m}}\)</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Thay \(y = x{;^{}}z = {x^2}\) vào đa thức Q ta được:<p>\(Q = 3{{{x}}^4} + 2{{{x}}^4} - 3{\left( {{x^2}} \right)^2} + 4 = 3{{{x}}^4} + 2{{{x}}^4} - 3{{{x}}^4} + 4 = 2{{{x}}^4} + 4\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c83f">

<strong class="question-index-number"><a href="/bai-tap-141215.html">Câu 26</a> : </strong>
                    <p>Tính: \(\left( {5{{{x}}^2} - 3{{x}} + 9} \right) - \left( {2{{{x}}^2} - 3{{x}} + 7} \right)\)</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(7{{{x}}^2} - 6{{x}} + 16\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(3{{{x}}^2} + 2\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(3{{{x}}^2} + 6{{x}} + 16\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(7{{{x}}^2} + 2\)                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Áp dụng quy tắc bỏ dấu ngoặc rồi thực hiện tính                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            \(\left( {5{{{x}}^2} - 3{{x}} + 9} \right) - \left( {2{{{x}}^2} - 3{{x}} + 7} \right) = 5{{{x}}^2} - 3{{x}} + 9 - 2{{{x}}^2} + 3{{x}} - 7 = 3{{{x}}^2} + 2\)                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c83a">

<strong class="question-index-number"><a href="/bai-tap-141214.html">Câu 27</a> : </strong>
                    <p>Thu gọn đa thức \(M =  - 3{{{x}}^2}y - 7{{x}}{y^2} + 3{{{x}}^2}y + 5{{x}}{y^2}\) được kết quả là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        \(M = 6{{{x}}^2}y - 12{{x}}{y^2}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        \(M = 12{{x}}{y^2}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                        \(M =  - 2{{x}}{y^2}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        \(M =  - 6{{{x}}^2}y - 2{{x}}{y^2}\)                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Nhóm các đơn thức đồng dạng với nhau</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có:</p>
<p>\(M =  - 3{{{x}}^2}y - 7{{x}}{y^2} + 3{{{x}}^2}y + 5{{x}}{y^2} = \left( { - 3{{{x}}^2}y + 3{{{x}}^2}y} \right) + \left( { - 7{{x}}{y^2} + 5{{x}}{y^2}} \right) =  - 2{{x}}{y^2}\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c835">

<strong class="question-index-number"><a href="/bai-tap-141213.html">Câu 28</a> : </strong>
                    <p>Giá trị của biểu thức \(2{{{x}}^3}{y^2} - 7{{{x}}^3}{y^2} + 5{{{x}}^3}{y^2} + 8{{{x}}^3}{y^2}\) tại x = -1; y = 1 bằng:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         8                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         -8                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         -13                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         10                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : B</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Thu gọn đa thức rồi thay giá trị x = -1; y = 1vào đa thức đã thu gọn.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có: \(2{{{x}}^3}{y^2} - 7{{{x}}^3}{y^2} + 5{{{x}}^3}{y^2} + 8{{{x}}^3}{y^2} = 8{{{x}}^3}{y^2}\)</p>
<p>Thay x = -1; y = 1 vào biểu thức \(8{{{x}}^3}{y^2}\) ta có: \(-8.{\left( { - 1} \right)^3}{.1^2} =  - 8\)</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c830">

<strong class="question-index-number"><a href="/bai-tap-141212.html">Câu 29</a> : </strong>
                    <p>Hệ số cao nhất và hệ số tự do của đa thức: \(P(x) =  - {x^4} + 3{{{x}}^2} + 2{{{x}}^4} - {x^2} + {x^3} - 3{{{x}}^3}\) lần lượt là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                        <p>-1 và 2                    </p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                        <p>-1 và 0                   </p>                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         1 và 0                                         </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                        <p>2 và 0</p>                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : C</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            <p>Thu gọn đa thức rồi xác định hệ số cao nhất và hệ số tự do.</p>
<p>Hệ số cao nhất là <strong>hệ số của hạng tử có bậc cao nhất</strong>.</p>                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            <p>Ta có: \(P(x) =  - {x^4} + 3{{{x}}^2} + 2{{{x}}^4} - {x^2} + {x^3} - 3{{{x}}^3} =  {x^4} - 2{{{x}}^3} + 2{{{x}}^2}\) có hệ số cao nhất là 1 và hệ số tự do là 0</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c82b">

<strong class="question-index-number"><a href="/bai-tap-141211.html">Câu 30</a> : </strong>
                    <p>Cho đa thức: \(Q(x) = 8{{{x}}^5} + 2{{{x}}^3} - 7{{x}} + 1\). Các hệ số khác 0 của đa thức Q(x):</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         5; 3; 1.                                           </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         8; 2; -7.                        </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         13; 4; -6; 1.                                   </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         8; 2; -7; 1.                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Các số gắn với biến khác 0 là các hệ số.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Đa thức: \(Q(x) = 8{{{x}}^5} + 2{{{x}}^3} - 7{{x}} + 1\) có các hệ số khác 0 là 8; 2; -7; 1.                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be5a6052767d059c821">

<strong class="question-index-number"><a href="/bai-tap-141209.html">Câu 31</a> : </strong>
                    <p>Bậc của đa thức \({x^2}{y^5} - {x^2}{y^4} + {y^6} + 1\) là:</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         4.                                       </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         5.                            </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         6.                          </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         7.                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : D</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Bậc của đa thức là bậc của hạng tử có bậc cao nhất trong dạng thu gọn của đa thức đó.                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                            Ta có:<p>\({x^2}{y^5}\) có bậc là 7.</p><p>\({x^2}{y^4}\) có bậc là 6</p><p>\({y^6}\) có bậc là 6</p><p>1 có bậc là 0</p><p>Vậy đa thức \({x^2}{y^5} - {x^2}{y^4} + {y^6} + 1\) có bậc là 7</p>                        </div>
                    </div>
                    
        </div>
        
</div><div class="question c649a6be4a6052767d059c81c">

<strong class="question-index-number"><a href="/bai-tap-141208.html">Câu 32</a> : </strong>
                    <p> Sắp xếp các hạng tử của \(P(x) = 2{{{x}}^3} - 5{{{x}}^2} + {x^4} - 7\) theo lũy thừa giảm dần của biến.</p>                </div>
            </div>
                <ul class="dapan rows-4">
                        <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">A.</span>
                    <div style="width: 90%">
                         \(P(x) = {x^4} + 2{{{x}}^3} - 5{{{x}}^2} - 7\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">B.</span>
                    <div style="width: 90%">
                         \(P(x) = 5{{{x}}^2} + 2{{{x}}^3} + {x^4} - 7\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">C.</span>
                    <div style="width: 90%">
                         \(P(x) =  - 7 - 5{{{x}}^2} + 2{{{x}}^3} + {x^4}\)                    </div>
                </li>
                                <li style="display: flex;align-items:flex-start">
                    <span class="span-answer" style="padding-top: 0;">D.</span>
                    <div style="width: 90%">
                         \(P(x) =  - 7 - 5{{{x}}^2} + 2{{{x}}^3} + {x^4}\)                    </div>
                </li>
                    </ul>
            <div class="loigiai">
            <p><b style="color: #000000">Đáp án : A</b></p>
                                <div class="solution-suggesstion">
                        <div class="solution-suggesstion-title">Phương pháp giải : </div>
                        <div>
                            Sắp xếp các số mũ của biến theo lũy thừa giảm dần                        </div>
                    </div>
                                        <div class="solution-detail">
                        <div class="solution-detail-title">Lời giải chi tiết : </div>
                        <div>
                             Ta có: \(P(x) = 2{{{x}}^3} - 5{{{x}}^2} + {x^4} - 7 = {x^4} + 2{{{x}}^3} - 5{{{x}}^2} - 7\)                        </div>
                    </div>
                    
        </div>

Trắc nghiệm Bài 1: Đơn thức và đa thức nhiều biến

Câu 1 : Cho đơn thức \(A = \left( {2{a^2} + \frac{1}{{{a^2...

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PRONUNCIATION AND STRESS EXERCISES (Exercise 6)

PRONUNCIATION AND STRESS EXERCISES (Exercise 6)

BÀI TẬP VỀ PHÁT ÂM VÀ TRỌNG ÂM Câu 1: Choose the word whose underlined syllable is pronounced differently from the rest. Chọn từ có...

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PRONUNCIATION AND STRESS EXERCISES (Exercise 5)

<p> <b style="background-color: white; color: #333333; font-family: Verdana, Geneva, sans-serif; font-size: 12px;"><span style="color: red;">BÀI TẬP VỀ PHÁT ÂM VÀ TRỌNG ÂM</span></b></p>
<div class="box-question">
<div class="question">
<h3> <b>  Câu 1: </b> Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">gr<u>a</u>mmar</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> (</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">ngữ pháp</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">d<u>a</u>mage</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">thiệt
hại</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">m<u>a</u>mmal</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">động
vật có vú</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">dr<u>a</u>ma</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">kịch</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 2: </b> Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">both</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">cả
hai</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">wi<u>th</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">với</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">ten<u>th</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">thứ
mười</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">my<u>th</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">thần
thoại</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 3: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">g</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">ate</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">cổng</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">g</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">aze</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">cái
nhìn</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">g</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">audy</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">lòe
loẹt</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">g</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">em</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">đá
quý</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 4: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">th</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">us</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">do
đó</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">th</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">umb</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">ngón
tay cái</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">sympa<u>th</u>y</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">sự
đồng cảm</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">th</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">en</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">sau
đó</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 5: </b>
Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">s<u>ay</u>s</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">nói</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">l<u>ay</u>s</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">đặt</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">st<u>ay</u>s</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">ở lại</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">pl<u>ay</u>s</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">chơi</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 6: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li class="correct"><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">ch</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">erish</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">trân
trọng</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">scholarship</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">học
bổng</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">ch</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">aos</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">hỗn
loạn</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">ch</span></u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">orus</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">điệp
khúc</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 7: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">tr<u>i</u>vial</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">tầm
thường</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">s<u>i</u>gn</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">dấu
hiệu</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">m<u>i</u>nor</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">thứ
yếu</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">r<u>i</u>val</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">đối
thủ</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 8: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">messa<u>ge</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">thông
điệp</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">privile<u>ge</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">đặc
quyền</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">colle<u>ge</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">trường
đại học</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">colla<u>ge</u></span><u><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> </span></u><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">(</span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">trường
cao đẳng</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 9: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">b<u>ear</u>d</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">râu</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">hearsay</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">tin
đồn</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">end<u>ear</u>ment</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">sự
yêu mến</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">reh<u>ear</u>se</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">diễn
tập</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
<h3><b> Câu 10: </b>Choose the word whose underlined syllable is pronounced differently from the rest.
</h3>Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại
<ul>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">t<u>y</u>pical</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">điển
hình</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">c<u>y</u>nicism</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">sự
hoài nghi</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">h<u>y</u>pocrite</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">đạo
đức giả </span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
<li class="correct"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: VI; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">d<u>y</u>namic</span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;"> <span lang="EN-US">(</span></span><span lang="EN-US" style="font-family: "Arial","sans-serif"; font-size: 11.0pt; mso-ansi-language: EN-US; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman"; mso-bidi-language: AR-SA; mso-bidi-theme-font: minor-bidi; mso-fareast-font-family: Arial; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin;">năng
động</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: VI;">)</span></li>
</ul>
<p><br /></p>
</div>
<div class="result"><span class="message"> Hãy trả lời các câu hỏi để biết kết quả của bạn </span></div>
</div>

PRONUNCIATION AND STRESS EXERCISES (Exercise 5)

BÀI TẬP VỀ PHÁT ÂM VÀ TRỌNG ÂM Câu 1: Choose the word whose underlined syllable is pronounced differently from the rest. Chọn từ có...

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PRONUNCIATION AND STRESS EXERCISES (Exercise 6)

PRONUNCIATION AND STRESS EXERCISES (Exercise 5)

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