若m+3的绝对值+n²-4n+4=0,则多项式3m²n+3mn²的值为
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=-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=3,求多项式2m²+4mn+2n²-3m-3n+1的值
若m.n满足3m-6的绝对值等于-(n+4)²,则mn等于多少?
若m-n=2,mn=1,则多项式(-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)的值是______.
若m-n=3,则3分之2m²-4mn+2n²的值为
若m+n=3,则2m²+4mn+2n²-6的值为——
若m+n=0,则多项式m^3-m^3n-mn^2+n^3
已知M-N=3,MN=1,求多项式多项式(-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