因式分解(a-1)x²-(a²+1)x+a²+a,

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/14 03:09:26

因式分解(a-1)x²-(a²+1)x+a²+a,

(a-1)x²-(a²+1)x+a²+a
=(a-1)x²-(a²+1)x+a(a+1)
=(x-a)[(a-1)x-(a+1)]

(a-1)x²-(a²+1)x+a²+a
=(a-1)x²+(a²-1)x+a(a+1)
=(a-1)x²+(a+1)(a-1)x-a(a-1)
提公因式(a-1)
=(a-1)(x²+a+1-a)
=(a-1)(x²+a)