## Trending News

# 15x - 5 = 2x^2 + 6x + 4?

Sorry I should have been more exact on what I needed. I need to know what to do with the 2x^2

### 4 Answers

- 1 decade agoFavorite Answer
15x - 5 = 2x^2 + 6x + 4

Add 5 to both sides.

15x = 2x^2 + 6x + 9

Subtract 15x from both sides.

0 = 2x^2 - 9x + 9

This trinomial can be factored.

0 = (2x - 3)(x - 3)

2x - 3 = 0 or x - 3 = 0

2x = 3 or x = 3

x = 3/2 or x = 3

- 1 decade ago
first you would get everything to one side and make the equation equal to zero. So move the 15x and the 5 to the right side and make sure to change their sign.

0 = 2^2 + 6x + 4 + 5 -15x

Then add like terms and get the following:

0 = 2^2 - 9x + 9

use the quadratic method for solving this

- ¥¥ZLv 41 decade ago
15x - 5 = 2x^2 + 6x + 4

0 = 2x^2 - 9x + 9 after moving everything to one side

0 = (2x - 3)(x - 3)

two problems are left to solve for x

0 = 2x - 3

3 = 2x

3/2 = x

and...

0 = x - 3

3 = x

x = 3 or 3/2

- stitchfan85Lv 61 decade ago
move the (15x-5) to the right side, so the equation equals 0. then use the quadratic formula.

- How do you think about the answers? You can sign in to vote the answer.
- 1 decade ago
Do your own homework, if you have questions on how to DO it, then ask.

I would advise combining like things. Such as: move -5 over to the other side. subtract 6x from both sides.