x^2-8x+15

___________

2x^2-7x-15

So far I've got for the numerator:

(x-3)(x-5)

What goes below, and how did you do it? Thank you.

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- Jul 30th 2012, 12:14 PMAshirHow to solve this rational expression?
x^2-8x+15

___________

2x^2-7x-15

So far I've got for the numerator:

(x-3)(x-5)

What goes below, and how did you do it? Thank you. - Jul 30th 2012, 12:41 PMPlatoRe: How to solve this rational expression?
- Jul 30th 2012, 01:26 PMAshirRe: How to solve this rational expression?
Thank you. How did you get that?

- Jul 30th 2012, 01:31 PMPlatoRe: How to solve this rational expression?
- Jul 30th 2012, 01:41 PMAshirRe: How to solve this rational expression?
I don't understand; what method did you use to arrive at that answer?

- Jul 30th 2012, 01:50 PMPlatoRe: How to solve this rational expression?
- Jul 30th 2012, 01:58 PMAshirRe: How to solve this rational expression?
(2x+2)(x-5) =

2x^2-10x+2x-10

2x^2-8x-10 - Jul 30th 2012, 02:05 PMPlatoRe: How to solve this rational expression?
- Jul 30th 2012, 02:39 PMAshirRe: How to solve this rational expression?
You posted (2x+2) though?

- Jul 30th 2012, 09:13 PMProve ItRe: How to solve this rational expression?
- Jul 31st 2012, 02:25 AMemakarovRe: How to solve this rational expression?
The most reliable way to factor a quadratic polynomial is by finding its roots using the quadratic formula. If the roots are and , then .

- Jul 31st 2012, 02:56 AMAshirRe: How to solve this rational expression?