若多项式3x2-2xy+y2+kxy-x-5不含xy项,则k=

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/27 04:36:29
若多项式3x2-2xy+y2+kxy-x-5不含xy项,则k=
x){ѽY/|߸HרRH;RBɎާVWTuv̶I*'Y~ y6a W)k%4A | mkd_\grMft

若多项式3x2-2xy+y2+kxy-x-5不含xy项,则k=
若多项式3x2-2xy+y2+kxy-x-5不含xy项,则k=

若多项式3x2-2xy+y2+kxy-x-5不含xy项,则k=
3x2-2xy+y2+kxy-x-5
=3x²(-2+k)xy+y²-x-5
-2+k=0
k=2