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歡迎您訪問數學考題練習:(3y-2)2=(2y-3)2.!

數學考題練習:(3y-2)2=(2y-3)2.

更新時間:2024-01-12 16:46:17作者:貝語網校

(3y-2)2=(2y-3)2

試題答案

解:(3y-2)2-(2y-3)2=0,

(3y-2+2y-3)(3y-2-2y+3)=0,

(5y-5)(y+1)=0,

∴y1=1,y2=-1.

試題解析

把右邊的項移到左,再用平方差公式因式分解,求出方程的根.

點評:本題考查的是用因式分解法解一元二次方程,根據題目的結構特點,用平方差公式因式分解,求出方程的根.

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