因式分解:(x-1)(x+1)(x+2)x-11880?

如题所述

第1个回答  2020-07-08
(x-1)(x+1)(x+2)x-11880
=x4+2x3-x2-2x-11880
=(x4+2x3+x2)-2(x2+x)-11880
=(x2+x)2-2(x2+x)-110*108
=(x-10)(x+11)(x2+x+108)
第2个回答  2020-07-08
(x-1)(x+1)(x+2)x-11880
=【x(x+1)】【(x-1)(x+2)】-11880
=(x²+x)(x²+x-2)-11880
=(x²+x)²-2(x²+x)-11880
=(x²+x+108)(x²+x-110)
=(x²+x+108)(x+11)(x-10)本回答被网友采纳