(x4y+6x3y2-x2y3)÷(3x2y)=_.

问题描述:

(x4y+6x3y2-x2y3)÷(3x2y)=______.

(x4y+6x3y2-x2y3)÷(3x2y)
=x4y÷3x2y+6x3y2÷3x2y-x2y3÷3x2y
=

1
3
x2+2xy-
1
3
y2
故答案为:
1
3
x2+2xy-
1
3
y2