Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Section 6.5 - Solving Equations Containing Rational Expressions - Vocabulary, Readiness & Video Check: 9


$a. (x+4)(x-4)$

Work Step by Step

The lowest common denominator for this problem can be found by comparing the three denominators. 1. $(x-4)$ 2. $(x+4)(x-4)$ [which is $(x^{2}-16)$ factored] 3. $(x+4)$ If we multiply the first denominator by $(x+4)$ and third denominators by $(x-4)$ we will arrive at a LCD of $(x+4)(x-4)$.
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