Solving Quadratic Equations by the Quadratic Formula

• May 5th 2013, 09:52 PM
Cake
Solving Quadratic Equations by the Quadratic Formula
Hey guys, I am having trouble with this problem that consists on fractions.

I know how to solve using quadratic formula but I don't know what step I should do for this one

Solve each equation:

(x-4) / (x^2 + 2) = 2
• May 5th 2013, 10:01 PM
MarkFL
Re: Solving Quadratic Equations by the Quadratic Formula
I would multiply through by $x^2+2$ first...
• May 5th 2013, 10:11 PM
Cake
Re: Solving Quadratic Equations by the Quadratic Formula
Quote:

Originally Posted by MarkFL
I would multiply through by $x^2+2$ first...

Multiply both sides by $x^2 + 2$ which gets me x-4 = 2x^2 + 4 and then move everything to either the right or left?
• May 5th 2013, 10:14 PM
MarkFL
Re: Solving Quadratic Equations by the Quadratic Formula
It really doesn't matter, as long as one side is zero. I would move everything to the right, then combine like terms and arrange with the zero on the right side. Now you will have the equation in standard quadratic form.
• May 5th 2013, 10:30 PM
Cake
Re: Solving Quadratic Equations by the Quadratic Formula
Sweet, I got the correct answer. It's quite funny how simple it was. Guess I can't see the simplest things sometimes haha. Thanks a lot.
• May 5th 2013, 10:39 PM
MarkFL
Re: Solving Quadratic Equations by the Quadratic Formula
Glad to help...and we all feel at times that we have missed something obvious; it goes with the territory. :D