Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter R - Algebra Reference - R.7 Radicals - R.7 Exercises - Page R-29: 23

Answer

$|4-x|$

Work Step by Step

Factor the trinomial to have: $=\sqrt{(4-x)^2}$ Taking the square root of a perfect square of a number gives us the absolute value of the original number: $=|4-x|$
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