Question

Which of the following are solutions​

Answer 1

-5 and 9

Explanation:

To find the solutions we will factor the equation.

First we take out a 2:

`2(x^2-4x-45)`

Then we can factor again:

`2(x+5)(x-9)`

This provides us with the answer of:

`x+5=0`

and

`x-9=0`

Hence the solutions of -5 and 9.