(m+n)^2{2n+2m+(m+n)}=(m+n)^2(3m+3n)还可以在化简么?
(m+n)^2{2n+2m+(m+n)}=(m+n)^2(3m+3n)还可以在化简么?
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)
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
已知:m*m=n+2,n*n=m+2.求m*m*m-2mn+n*n*n(m不等于n).
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)
2x+n/m=m/n-(m/n+n/m)x(m+n不等于0)
m-{n-2m+[3m-(6m+3n)-5n]}化简
化简m/(m+n)²+n/m²-n²-2n²/(m+n)(m²-n
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)