-X²y+ 5X²y

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 10:54:28
-X²y+ 5X²y

-X²y+ 5X²y
-X²y+ 5X²y

-X²y+ 5X²y
=4x²y
-X²y+ 5X²y是同类项

-X²y+ 5X²y=4x²y

原式=4x²y