原式=6x2y/(-3xy)-xy2/(-3xy)-1/2x2y3/(-3xy)
=-2x+y/3+xy2/6謝謝，這對(duì)嗎？嗯，肯定
(6x2y-xy2-1/2x2y3)/(-3xy)
(6x2y-xy2-1/2x2y3)/(-3xy)
數(shù)學(xué)人氣：656 ℃時(shí)間：2020-05-21 16:51:50
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