[(-m^3n^2)^3)]^2*(-m^2n^3)^2
[(m-n)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
计算(m+n)^3-(n+m)(m-n)^2
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
3m(m-n)-2n(m-n)的平方
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
(2m+3n)(2m-3n)-(3m-2n)(3m+2n)
(2m+3n)(3m-2n)-(3m-2n)(3m+2n)
(3m-2n)^+(3m+2n) (3m-2n)-9(m+n)^
计算[5(m+n)2(m-n)]3÷【3(m+n)2(n-m)]2