(3m-4n)(4n+3m)-(2m-n)(2m+n)
(3m-4n)(4n+3m)-(2m-n)(2m+n)
[(m-n)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
(4(m-n)^3)/((n-m)^2)
已知2m+n分之m-2n=3,则2m+n分之3(m-2n)+3(2m+n)分之m-2n-4(2m+n)分之5(m-2n)
(5m+2n)(5m-2n)-(3m-4n)(4m+3n)
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
计算(3-m+n)*(3+m-n)-(2-m+n)*(2+m-n)
计算(m+4n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n),
(m+4n)(m-n)-6(m+2n)(m-3n)