已知:m,n均为实数,且(m+1)(n+1)=4mn,求mn+mn的值
已知:m,n均为实数,且(m²+1)(n²+1)=4mn,求m²n+mn²的值,
已知:m,n均为实数,且(m^2+1)(n^2+1)=4mn,求m^2n+mn^2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=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值
已知|m-n-2|与(mn-1)^互为相反数,求(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值
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
已知mn均为整数,且有m(m-n)-n(n-m)=12,求m,n的值,
已知m-n=2,mn=-1,求(4m-5n-mn)-(2m-3n+5mn)的值
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=4,mn=2,求多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值.
已知m-n=3,mn=-3,求(-m-4n-mn)-(2mn-2m-3n)-(3mn+2n-2m)的值