Question

How do you multiply `(8b+6)(b-5)`?

Answer 1

`8b^2-34b-30`

Explanation:

We must ensure that each term in the second bracket is multiplied by each term in the first bracket. This can be achieved as follows.

`(color(red)(8b+6))(b-5)`

`=color(red)(8b)(b-5)color(red)(+6)(b-5)`

now distribute the brackets.

`=8b^2-40b+6b-30`

collecting like terms gives.

`8b^2-34b-30`