-X²y+ 5X²y

来源：学生作业帮助网 编辑：作业帮 时间：2024/10/03 04:16:18
-X²y+ 5X²y
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-X²y+ 5X²y
-X²y+ 5X²y

-X²y+ 5X²y
=4x²y
-X²y+ 5X²y是同类项

-X²y+ 5X²y=4x²y

原式=4x²y