(3x²y-xy²+2xy)/二分之一xy
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![(3x²y-xy²+2xy)/二分之一xy](/uploads/image/z/1782088-16-8.jpg?t=%EF%BC%883x%26%23178%3By-xy%26%23178%3B%2B2xy%29%2F%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80xy)
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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
原式=3x²y/(1/2xy)-xy²/(1/2xy)+xy/(1/2xy)
=6x-2y+2
=2xy(3x-y+2)/xy
=6x-2y+4