m-{n-2m+[3m-(6m+3n)-5n]}化简
m-{n-2m+[3m-(6m+3n)-5n]}化简
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
(m-5n)(m-n)-6(m+2n)(m-3n)
(m-n)2(n-m)3(n-m)4化简
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
化简-3n+5m-[m-5(m-n)+m]
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
m-{n-2m+[3m-(6m+3n)+5n]}=
m方-【5m+3n】【5m-3n】+6【2m-n】【m+2n】等于多少
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)