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4x^3-4x^2y+2x^2-2xy因式分解怎么做
人气:495 ℃ 时间:2020-01-28 14:39:16
解答
4x^3-4x^2y+2x^2-2xy
=4x^3+2x^2-4x^2y-2xy
=2x^2(2x+1)-2xy(2x+1)
=2x(2x+1)(x-y)
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