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x^3-4x^2y+xy^2
人气:417 ℃ 时间:2020-05-29 09:02:20
解答
x^3-4x^2y+xy^2
=x(x²-4xy+y²)
=x(x²-4xy+4y²-3y²)
=x[(x-2y)²-3y²]
=x(x-2y+√3y)(x-2y-√3y)
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