(x-1)²=3(1-x)用分解因式法来解
问题描述：
(x-1)²=3(1-x)用分解因式法来解
答
(x-1)²+3(x-1)=0
(x-1)(x-1+3)=0
(x-1)(x+2)=0
∴x=1 x=-2