#### Answer

$y=±2\sqrt5$

#### Work Step by Step

$y^2=20 \\ y=± \sqrt{20} = ±2\sqrt{5}$

Published by
Pearson

ISBN 10:
0321726391

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

$y=±2\sqrt5$

$y^2=20 \\ y=± \sqrt{20} = ±2\sqrt{5}$

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