作业帮化简：[(-3x^2y^4)^2·x^3-2x·(3x^2y^2)^3·1/2y^2]÷9x^7y^8
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/28 17:30:02
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化简：[(-3x^2y^4)^2·x^3-2x·(3x^2y^2)^3·1/2y^2]÷9x^7y^8
化简：[(-3x^2y^4)^2·x^3-2x·(3x^2y^2)^3·1/2y^2]÷9x^7y^8
化简：[(-3x^2y^4)^2·x^3-2x·(3x^2y^2)^3·1/2y^2]÷9x^7y^8
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可以这么化简：[(-3x^2y^4)^2·x^3-2x·(3x^2y^2)^3·1/2y^2]÷9x^7y^8=[9x^4y^8*x^3-2x*(3x^2)^3*(y^2)^3*1/2y^2]÷9x^7y^8=(9x^7y^8-27x^7y^4)÷9x^7y^8=(y^4-3)/y^4=1-3/y^4
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