Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 6 - Section 6.2 - Adding and Subtracting Rational Expressions - Exercise Set - Page 427: 18



Work Step by Step

$15x^2=3\cdot5\cdot x\cdot x$, $24x=3\cdot8\cdot x$, so the GCF is $3x$ and the terms that are "not common" are $5x$ and $8$ so LCD$=3x\cdot5x\cdot8=120x^2$
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