College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.1 - Page 17: 56

Answer

$13 - \sqrt 5$

Work Step by Step

Absolute values always evaluate to a positive number. If you were to subtract 13 from the square root of 5 the result would be negative. The correct answer is 13 minus the square root of 5. $13 - \sqrt 5$
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