作业帮化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/20 22:04:40
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化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy]
3x^2-[5xy-(x^2y-3xy)+4x^2y-8xy]
= 3x^2-[5xy-x^2y+3xy+4x^2y-8xy]
= 3x^2-5xy+x^2y-3xy-4x^2y+8xy
= 3x^2-3x^2y
= 3x^2 (1 - y)
题目应该少打了一个2，以下是化简过程： 请放心使用 有问题的话请追问 满意请及时采纳，谢谢
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