问题描述: x²(3x+5Y)²-y²(5x+3y)² 因式分解 感激不尽! 1个回答 分类:数学 2014-10-24 问题解答: 我来补答 =(3x²+5xy)²-(5xy+3y²)²=[(3x²+5xy)+(5xy+3y²)][(3x²+5xy)-(5xy+3y²)]=(3x²+10xy+3y²)(3x²-3y²)=3(3x+y)(x+3y)(x+y)(x-y) 展开全文阅读