(x-y)的平方*(x-y)的立方的立方

问题描述:

(x-y)的平方*(x-y)的立方的立方

(x-y)的平方*(x-y)的立方的立方
=[(x-y)^2 * (x-y)^3 ]^3
=(x-y)^5*3=(x-y)^15