(3m-2n)-(3m-6n+5)等于几
(3m-2n)-(3m-6n+5)等于几
m方-【5m+3n】【5m-3n】+6【2m-n】【m+2n】等于多少
(-m^2n^3)^6/(-m^2n^3)等于
5m+2n-3m+ n 等于多少?
n-m等于-3则4-2m+2n等于几
若|m-3|+|n+2|等于0,则m+2n等于几
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
(m-5n)(m-n)-6(m+2n)(m-3n)
已知m/n = 5/3 求m/(m+n)+m/(m-n)-n^2/(m^2-n^2)等于多少?(要化简全过程)
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
2n+ 5-m=6等于几