(x-1)^2-7(x-1)(x+1)+3(1-x) 因式分解
问题描述:
(x-1)^2-7(x-1)(x+1)+3(1-x) 因式分解
答
(x-1)^2-7(x-1)(x+1)+3(1-x)
=(x-1)^2-7(x-1)(x+1)-3(x-1)
=(x-1)[(x-1)-7(x+1)-3]
=(x-1)(-6x-11)
=-(x-1)(6x+11)