作业帮化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/04 18:53:34
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化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
