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class="op-item-meat">2x<sup>2</sup>﹣3y﹣5=0</span></span> <span id="ccd6ytj" class="op-item"><span id="vzk6kti" class="op-item-nut">B . </span><span id="pzmtmtu" class="op-item-meat">x<sup>2</sup>=2x</span></span> <span id="lnv10vc" class="op-item"><span id="ijd1zzg" class="op-item-nut">C . </span><span id="krev3xo" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmi%3Ex%3C%2Fmi%3E%3C%2Fmfrac%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">+4=x<sup>2</sup></span></span> <span id="8djat8q" class="op-item"><span id="w4jbxgb" class="op-item-nut">D . </span><span id="p7wjbxq" class="op-item-meat">y<sup>2</sup>﹣<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsqrt%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmi%3Ey%3C%2Fmi%3E%3C%2Fmsqrt%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">﹣3=0</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="hxm5lgj" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="h0wwojz" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img src="/question/paper-qrcode?id=2645880" width="140px" height="140px" alt=""> <p style="text-align:center;margin-top: 10px">微信掃碼預覽、分享更方便</p> </div> <div id="2ju4nrr" class="analyize-extend JV_question__papers"> <h3 class="extend-mt">使用過本題的試卷</h3> <ul class="extend-mc"> <li> <a href="/paper/view-5365009.shtml" target="_blank" title="北師大版數(shù)學九（上）2.1認識一元二次方程同步訓練" class="ex-tit"> <b></b><span>北師大版數(shù)學九（上）2.1認識一元二次方程同步訓練</span> </a> </li> <li> <a href="/paper/view-5358519.shtml" target="_blank" title="【提升版】北師大版數(shù)學九年級上冊第二章一元二次方程章節(jié)測試卷" class="ex-tit"> <b></b><span>【提升版】北師大版數(shù)學九年級上冊第二章一元二次方程章節(jié)測試卷</span> </a> </li> 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