Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 7 - Section 7.5 - Multiplying with More Than One Term and Rationalizing Denominators - Concept and Vocabulary Check - Page 549: 6

Answer

$7\sqrt2-5$.

Work Step by Step

The conjugate of $a+b$ is $a-b$, thus the conjugate of $7\sqrt2+5$ is $7\sqrt2-5$.
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