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
的值为______. 2x+3xy-2y x-2xy-y
答
∵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