问题描述: (6a²-2a²)-(-a²+2ab+b²)-(a²-4ab+3b²)化简 1个回答 分类:综合 2014-11-19 问题解答: 我来补答 (6a²-2b²)-(-a²+2ab+b²)-(a²-4ab+3b²)=6a²-2b²+a²-2ab-b²-a²+4ab-3b²=(6+1-1)a²-(2+1+3)b²+(4-2)ab=6a²-6b²+2a 展开全文阅读