Question

Consider this expression.

7m2 + (2m - 1)(m + 9)
What expression is equivalent to the given expression?
cm2 + m +

Answer 1

`9m^2 + 17m- 9`

Explanation:

Given

`7m^2 + (2m - 1)(m + 9)`

Required:

Simplify

We start by opening the bracket

`7m^2 + (2m(m + 9) - 1(m + 9))`

`7m^2 + 2m^2 + 18m - m - 9`

Collect Like Terms

`9m^2 + 17m- 9`

Hence, the equivalent expression is
`9m^2 + 17m- 9`