计算(3x-3y)²(x-y)³(y-x)²(y-x)³要过程,
问题描述:
计算(3x-3y)²(x-y)³(y-x)²(y-x)³要过程,
答
=3(x-y)²(x-y)³(x-y)²[-(x-y)³]
=-3(x-y)的10次方