问题描述: 若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值 1个回答 分类:数学 2014-09-20 问题解答: 我来补答 9(x+y)^(2m)*(x-y)^(4n)*[-(x+y)^2]=-9(x+y)^(2m+2)*(x-y)^(4n)∴a=9 2m+2=10 4n=12-n∴m=4 n=12/5 展开全文阅读