-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
来源：学生作业帮助网 编辑：六六作业网 时间：2024/07/17 21:52:50
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]-3(xy-2x²)-[y²-(5xy-4x²)+2xy]-3(xy-2x
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
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来源：学生作业帮助网 编辑：六六作业网 时间：2024/07/17 21:52:50
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]
-3(xy-2x²)-[y²-(5xy-4x²)+2xy]