(1) (x-1)²(3x-2)+(2-3x) (2) a²+5a+6
问题描述:
(1) (x-1)²(3x-2)+(2-3x) (2) a²+5a+6
因式分解
答
(1) (x-1)²(3x-2)+(2-3x)
=(3x-2)((x-1)^2-1)
=x(3x-2)(x-2)
(2) a²+5a+6
=(a-2)(a-3)