Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.4 - Rationalizing the Denominator - Exercise Set - Page 600: 7

Answer

$4\sqrt7$

Work Step by Step

$\frac{28}{\sqrt{7}}$ Rationalize the denominator, $\frac{28}{\sqrt{7}}\times\frac{\sqrt{7}}{\sqrt{7}}$ Simplify. $\frac{28\sqrt{7}}{7}$ Reduce. Divide the numerator and denominator by greatest common factor of 7. $4\sqrt7$
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