Algebra: A Combined Approach (4th Edition)

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

Chapter 11 - Cumulative Review - Page 836: 36

Answer

$\frac{1}{x-2}$

Work Step by Step

$\frac{3}{x^{2}-4}-\frac{1-x}{x^{2}-4}$ =$\frac{3-(1-x)}{x^{2}-4}$ =$\frac{3-1+x}{x^{2}-2^{2}}$ =$\frac{2+x}{(x+2)(x-2)}$ =$\frac{1}{x-2}$
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