Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises - Page 74: 7

Answer

$\color{blue}{5\sqrt2}$

Work Step by Step

Factor the radicand so that one of the factors is a perfect square to obtain: $=\sqrt{25(2)} \\=\sqrt{5^2(2)}$ Simplify by bringing out the square root of the perfect square factor to obtain: $=\color{blue}{5\sqrt2}$
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