分解因式3ab^2(x-y)^m-1-6a^2b(x-y)^m
问题描述:
分解因式3ab^2(x-y)^m-1-6a^2b(x-y)^m
分解因式3ab^2·(x-y)^m-1·-6a^2·b(x-y)^m
答
3ab^2·(x-y)^m-1·-6a^2·b(x-y)^m
提取公因式
=3ab·(x-y)^m-1·[b-2a·(x-y)]
=3ab(x-y)^(m-1)(b-2ax+2ay)