化简(x-y)^3乘以（y-x）^2为
问题描述：
化简(x-y)^3乘以（y-x）^2为
A（x-y）^5 B（x-y）^6 C（y-x）^5 D（y-x）^6
答
(x-y)^3乘以（y-x）^2
=(x-y)^3*(x-y)^2
=(x-y)^(3+2)
=(x-y)^5
A