#### Answer

$7x+1$

#### Work Step by Step

Using the rule given in the book:
If $n$ is an even positive integer, then $\sqrt[n]{a^n} = |a|$
If $n$ is an odd positive integer, then $\sqrt[n]{a^n} = a$
We get $7x-1$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$7x+1$

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