meili 发表于 2022-10-27 14:41:16

探究下表中的奥秘,并完成填空:一元二次方程两个根二次三项式因式分解x2-2x+1=0x1=1,x2=1x2-2x+1=(x-1)(x-1)x2-3x+2=0x1=1,x2=2x2-3x+2=(x-1)(x-2)3x2+x-2=02x2+5x+2=04x2+13x+3=0x1=________,x2=________4x2+

<p>问题:探究下表中的奥秘,并完成填空:一元二次方程两个根二次三项式因式分解x2-2x+1=0x1=1,x2=1x2-2x+1=(x-1)(x-1)x2-3x+2=0x1=1,x2=2x2-3x+2=(x-1)(x-2)3x2+x-2=02x2+5x+2=04x2+13x+3=0x1=________,x2=________4x2+
<p>答案:↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">饶鹏的回答:<div class="content-b">网友采纳  --33ax1x2由方程4x2+13x+3=0得,(x+3)(4x+1)=0,解得x1...
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