Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.4 - Adding and Subtracting Rational Expressions with Different Denominators - Exercise Set: 9

Answer

$\frac{x-6}{(x+2)(x-2)}$

Work Step by Step

$\frac{3}{x+2}$-$\frac{2x}{x^{2}-4}$= $\frac{3}{x+2}$-$\frac{2x}{(x+2)(x-2)}$= $\frac{3(x-2)}{(x+2)(x-2)}$-$\frac{2x}{(x+2)(x-2)}$= $\frac{3(x-2)-2x}{(x+2)(x-2)}$= $\frac{3x-6-2x}{(x+2)(x-2)}$= $\frac{x-6}{(x+2)(x-2)}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.