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因式分解1/2y^2-y+1/2
(1/2)y^2-y+(1/2)
人气:448 ℃ 时间:2020-09-10 22:13:21
解答
(½y-½)(y-1)
½y²-y+½
=½(y²-2y+1)
=½[(y-1)(y-1)]
=(½y-½)(y-1)
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