问题描述: 因式分解 X^4(X-y)-y^4(X-y) 1个回答 分类:数学 2014-10-02 问题解答: 我来补答 X^4(X-y)-y^4(X-y)=(x-y)(x^4-y^4)=(x-y)(x^2+y^2)(x^2-y^2)=(x-y)(x^2+y^2)(x+y)(x-y)=(x-y)^2(x^2+y^2)(x+y) 展开全文阅读