Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 9 - Roots and Radicals - Chapter 9 Test: 13

Answer

$\dfrac{\sqrt{15xy}}{5y}$

Work Step by Step

Using the properties of radicals, the given expression, $ \dfrac{\sqrt{3x}}{\sqrt{5y}} ,$ simplifies to \begin{array}{l}\require{cancel} \dfrac{\sqrt{3x}}{\sqrt{5y}}\cdot\dfrac{\sqrt{5y}}{\sqrt{5y}} \\\\= \dfrac{\sqrt{15xy}}{(\sqrt{5y})^2} \\\\= \dfrac{\sqrt{15xy}}{5y} .\end{array}
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