(2xy-y)-(-y+xy)=
来源:学生作业帮助网 编辑:六六作业网 时间:2024/08/17 03:41:39
(2xy-y)-(-y+xy)= (2xy-y)-(-y+xy)= (2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)
=2xy-y+y-xy
=2xy-xy-y+y
=xy
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来源:学生作业帮助网 编辑:六六作业网 时间:2024/08/17 03:41:39
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)=
(2xy-y)-(-y+xy)
=2xy-y+y-xy
=2xy-xy-y+y
=xy