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因式分解:3/4a^2x^2-9a^2xy+27a^2y^2
人气:137 ℃ 时间:2020-01-26 05:00:46
解答
3/4a^2x^2-9a^2xy+27a^2y^2
=3/4a^2(x^2-12xy+36y^2)
=3/4a^2(x-6y)^2
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