(3x²y-xy²+2xy)/二分之一xy
问题描述:
(3x²y-xy²+2xy)/二分之一xy
答
=2xy(3x-y+2)/xy
=6x-2y+4
答
原式=3x²y/(1/2xy)-xy²/(1/2xy)+xy/(1/2xy)
=6x-2y+2