问题描述: 因式分解:(x-y)的平方-8(x-y-2)等于? 1个回答 分类:数学 2014-10-05 问题解答: 我来补答 (x-y)^2-8(x-y-2)=(x-y)^2-8(x-y)+16=[(x-y)-4]^2=(x-y-4)^2 展开全文阅读