Question

Expand 10a(2a-7) pls its very urgent

Answer 1

20a² - 70a

Explanation:

(10a)(2a-7)

= 10a*2a + 10a*-7

= 20a² - 70a

Answer 2

`20a^2-70a`

Explanation:

1) Expand by distributing terms.

`10*2a+10a*-7`

2) Take out the constants.

`(10*2)aa+10a*-7`

3) Simplify
`10*2` to
`20.`

`20aa+10a*7`

4) Use Product Rule:
`x^ax^b=x^(a+b)`.

`20a^2+10a*-7`

5) Simplify
`10a*-7` to
`-70a.`

`20a^2-70a`

Thank you,

Eddie