若多项式x²-3kxy+1/3xy-8合并同类项后不含xy项,求k的值格式是这样的：原式=...........=..........=..........∵该式合并同类项后不含xy项，∴原式=..............=...........∴k=.......

若多项式x²-3kxy+1/3xy-8合并同类项后不含xy项,求k的值格式是这样的：原式=...........=..........=..........∵该式合并同类项后不含xy项，∴原式=..............=...........∴k=.......
若多项式x²-3kxy+1/3xy-8合并同类项后不含xy项,求k的值
格式是这样的：
原式=...........
=..........
=..........
∵该式合并同类项后不含xy项，
∴原式=..............
=...........
∴k=.......

若多项式x²-3kxy+1/3xy-8合并同类项后不含xy项,求k的值格式是这样的：原式=...........=..........=..........∵该式合并同类项后不含xy项，∴原式=..............=...........∴k=.......
x²-3kxy+1/3xy-8=x²+(1/3-3k)xy-8
1/3-3k=0
k=1/9