2m-3n/3m+5n=3 则(4m-6n/18m+30n)+9m+15n/4m-6n的值是多少
2m-3n/3m+5n=3 则(4m-6n/18m+30n)+9m+15n/4m-6n的值是多少
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)
[(m-n)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
若m-n=3,3m+2n=2,求代数式6m(m-n)-4n(n-m)的值
如果m和n互为相反数,则m+2m+3m+4m+5m+5n+4n+3n+2n+n=
已知2m-3n/3m+n=2,求4m-6n/9m+3n+18m+6n/4m-6n的值
已知2m-3n/3m+n=2 求(4m-6n/9m+3n)+(18m+6n/4m-6n)的值.要有步骤和讲解.
若|m-n|=n-m,且|m|=4,|n|=3,(m+n)²的值是多少?
已知m-n=6,求4(m-n)-3m+3n+8的值.