(3m+2n)(3m+2n-m-n)怎么算
(3m+2n)(3m+2n-m-n)怎么算
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
计算(3-m+n)*(3+m-n)-(2-m+n)*(2+m-n)
(3m-4n)(4n+3m)-(2m-n)(2m+n)
(2m+3n)(2m-3n)怎么算
(m+n)^3(m+n)^2怎么算?
(m-n)^2*[(n-m)^3]^5怎么算
m-{n-2m+[3m-(6m+3n)-5n]}化简
已知|2m-n/m+2n|=3,求2(2m-n)/m+2n-2m-n/m+2n-3的值
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
计算题:(1) 5(m+n)(m--n)--2(m+n)(m+n)--3(m-n)(m--n)
(m-n)·(n-m)2·(m-n)3怎么算?