计算(-2mn)^3(mn+1/2)(m^2n^2-1/2mn+1/4)
计算(-2mn)^3(mn+1/2)(m^2n^2-1/2mn+1/4)
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-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(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
已知m-n=3,mn=-1,求多项式-2mn+2m+3n-3mn-2n+2m-4n-m-mn的值
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)的值
3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
-2(mn-3m平方)-{m平方-5(mn-m平方)+2mn,其中m=1,n=-2
知m*m-mn=1,4mn-3n*n=-2,则m*m+3mn-3n*n的值是多少
计算(-mn)^2×(-m^2n)^3
3(m^2n+mn)-4(mn-2m^2n)+mn.