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分解因式:3x(x-y)3-6y(y-x)
人气:329 ℃ 时间:2020-05-24 09:24:12
解答
=3x(x-y)^3+6y(x-y)
=3(X-Y)(X(X-Y)^2+2Y)
=3(X-Y)(X(X-Y)^2+2Y)
=3(x-y)(x³-2x²y+xy²+2y)
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