Answer
$\frac{5\sqrt y}{y}$
Work Step by Step
$\sqrt \frac{25}{y}=\frac{\sqrt 25}{\sqrt y}=\frac{\sqrt25 \times \sqrt y}{\sqrt y \times \sqrt y}=\frac{5\sqrt y}{y}$
We know that $\sqrt 25=5$, because $5^{2}=25$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Section 7.5 - Rationalizing Denominators and Numerators of Radical Expressions - Exercise Set - Page 445: 6
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