Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Appendix A - Review - A.5 Rational Expressions - A.5 Assess Your Understanding - Page A41: 23

Answer

$\dfrac{(x+2)(x-2)}{2x-3}$

Work Step by Step

Add numerators because denominators are same. $\dfrac{x^2-4}{2x-3}$ $=\dfrac{x^2-2^2}{2x-3}$ Factor each polynomial completely. Use special formula $a^2-b^2=(a+b)(a-b)$. $=\dfrac{(x+2)(x-2)}{2x-3}$
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