(3x²y-xy²+2xy)/二分之一xy

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(3x²y-xy²+2xy)/二分之一xy

(3x²y-xy²+2xy)/二分之一xy
(3x²y-xy²+2xy)/二分之一xy

(3x²y-xy²+2xy)/二分之一xy
原式=3x²y/(1/2xy)-xy²/(1/2xy)+xy/(1/2xy)
=6x-2y+2

=2xy(3x-y+2)/xy
=6x-2y+4