(x-y)的10次方/(y-x)的3次方/(x-y)
问题描述:
(x-y)的10次方/(y-x)的3次方/(x-y)
答
原式=(x-y)的10次方/[-(x-y)的3次方]/(x-y)
=-(x-y)的10-3-1)次方
=-(x-y)的6次方