已知x-y=4xy,则2x+3xy-2y/x-2xy-y的值为_.

问题描述:

已知x-y=4xy,则

2x+3xy-2y
x-2xy-y
的值为______.

∵x-y=4xy,

2x+3xy-2y
x-2xy-y
=
2(x-y)+3xy
x-y-2xy
=
8xy+3xy
4xy-2xy
=
11
2

故答案为:
11
2