5ab(2a-b+0.2)=?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 00:17:27
5ab(2a-b+0.2)=?5ab(2a-b+0.2)=?5ab(2a-b+0.2)=?=5ab×2a-5ab×b+5ab×0.2=10a²b-5ab²+ab5ab×(2a-b+

5ab(2a-b+0.2)=?
5ab(2a-b+0.2)=?

5ab(2a-b+0.2)=?
=5ab×2a-5ab×b+5ab×0.2
=10a²b-5ab²+ab

5ab×(2a-b+0.2)
=10a²b-5ab²+ab