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因式分解:3x^2y+6xy-4x-8
人气:109 ℃ 时间:2020-03-28 10:36:04
解答

3x²y+6xy-4x-8
=(3x²y-4x)+(6xy-8)
=x(3xy-4)+2(3xy-4)
=(x+2)(3xy-4)
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