若m+n=0,则多项式m^3-m^3n-mn^2+n^3
若m+n=0,则多项式m^3-m^3n-mn^2+n^3
已知m-n=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2n)-(m+4n+mn)的值
已知m-n=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值
已知m-n=2,mn=1,求多项式(2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
已知m-n=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值.
若m-n=2,mn=1,则多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值是______.
若m^2+3mn+2n=0,则n/m+m/n的值为
合并多项式中的同类项:m^3-m^2n+mn^2+m^2n-mn^2+n^3+1
已知m-n=2,mn=1.求多项式(-2mn+2m+3n)-(3mn+2n-2m)
若m-n=4,mn=-1求(9-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)
若m-n=4,mn=-1,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)的值