神马作文网求多项式5m^2n+3mn^2-3m^2n-mn^2-4m^2n+3mn^2+1的值,其中m,n满足(m-2)^2+|n
来源：学生作业帮 编辑：神马作文网作业帮 分类：数学作业 时间：2024/11/12 22:52:34
求多项式5m^2n+3mn^2-3m^2n-mn^2-4m^2n+3mn^2+1的值,其中m,n满足(m-2)^2+|n+1/3|=0
(m-2)^2+|n+1/3|=0
(m-2)^2=0
m=2
|n+1/3|=0
n=-1/3
5m^2n+3mn^2-3m^2n-mn^2-4m^2n+3mn^2+1
=5m^2n-4m^2n-3m^2n+3mn^2-mn^2+3mn^2+1
=-2m^2n+5mn^2+1
=5mn^2-2m^2n+1
=mn(5n-2m)+1
=-1/3*2(-1/3*5-2*2)+1
=-2/3*(-5/3-4)+1
=-2/3*(-17/3)+1
=34/9+1
=43/9
(m-2)^2=0
m=2
|n+1/3|=0
n=-1/3
5m^2n+3mn^2-3m^2n-mn^2-4m^2n+3mn^2+1
=5m^2n-4m^2n-3m^2n+3mn^2-mn^2+3mn^2+1
=-2m^2n+5mn^2+1
=5mn^2-2m^2n+1
=mn(5n-2m)+1
=-1/3*2(-1/3*5-2*2)+1
=-2/3*(-5/3-4)+1
=-2/3*(-17/3)+1
=34/9+1
=43/9
求多项式5m^2n+3mn^2-3m^2n-mn^2-4m^2n+3mn^2+1的值,其中m,n满足(m-2)^2+|n
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=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.
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)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
已知mn／m+n=2,求3m-5mn+3n/-m+3mn-n的值
已知m-n=3,mn=-3,求(-m-4n-mn)-(2mn-2m-3n)-(3mn+2n-2m)的值
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(9-2mn+2m+3n)-(3mn+2n-2m)-(m+4n+mn)