化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
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化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)化简{21x^5
化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
您好:
{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
=-3y³+4x²+28x^6y^5/(-7x^5y^4)
=-3y³+4x²-4xy
不明白,可以追问
如有帮助,记得采纳,谢谢
祝学习进步!
化简{21x^5y^7-28x^7y^4+7y(2x^3y^2)^2}/(-7x^5y^4)
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