问题描述: 若[-3(x+y)m(x-y)2n]2•[-(x+y)2]=-9(x+y)10(x-y)12-n,求m、n的值. 1个回答 分类:数学 2014-12-06 问题解答: 我来补答 ∵[-3(x+y)m(x-y)2n]2•[-(x+y)2]=-9(x+y)2m+2(x-y)4n=-9(x+y)10(x-y)12-n,∴2m+2=10,4n=12-n,解得m=4,n=125. 展开全文阅读