Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.5 - Rationalizing Numerators and Denominators of Radical Expressions - Vocabulary and Readiness Check: 9

Answer

$-7\sqrt 5-8\sqrt x$

Work Step by Step

The conjugate of $-7\sqrt 5+8\sqrt x$ is found by changing the sign between the two terms to negative. Therefore, the conjugate is $-7\sqrt 5-8\sqrt x$.
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