问题补充:
关于X,Y的多项式6mx²+4nxy+2+2xy-x²+y+4不含二次项,求多项式2m²n+10m-4n+2-2m²n-4m+2n
答案:
首先把多项式合并
(6m-1)x^2+(4n+2)xy+y+6
所以6m-1=0
4n+2=0
解得m=1/6,n=-1/2
2m²n+10m-4n+2-2m²n-4m+2n
=6m-2n+2
=1+1+2
=4======以下答案可供参考======
供参考答案1:
aa供参考答案2:
由题意可得,6m-1=0,4n+2=0求出m,n
时间:2022-10-22 22:31:47
关于X,Y的多项式6mx²+4nxy+2+2xy-x²+y+4不含二次项,求多项式2m²n+10m-4n+2-2m²n-4m+2n
首先把多项式合并
(6m-1)x^2+(4n+2)xy+y+6
所以6m-1=0
4n+2=0
解得m=1/6,n=-1/2
2m²n+10m-4n+2-2m²n-4m+2n
=6m-2n+2
=1+1+2
=4======以下答案可供参考======
供参考答案1:
aa供参考答案2:
由题意可得,6m-1=0,4n+2=0求出m,n
关于X Y的多项式6MX²+4NXY+2X+2XY-X²+Y-4中不含二次项 求
2019-10-20