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.
$13 - \sqrt 5$
College Algebra (6th Edition)
by Blitzer, Robert F.
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
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