-3a(1-x)-2b(x-1)+(1-x) 因式分解

问题描述:

-3a(1-x)-2b(x-1)+(1-x) 因式分解

提取(x-1)
(x-1)(3a-2b-1)

=3a(x-1)-2b(x-1)-(x-1)
=(x-1)(3a-2b-1)