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[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/(5xy^2)
人气:380 ℃ 时间:2020-01-29 21:31:25
解答
[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/(5xy^2)
=[5xy^2(x^2-3xy)+27x^6y^6]/(5xy^2)
=5xy^2(x^2-3xy)/(5xy^2)+27x^6y^6/(5xy^2)
=x^2-3xy+27x^5y^4/5
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