#### Answer

$2i\sqrt 2$

#### Work Step by Step

To express in terms of $i$ simply divide the number under the radical by -1 and write i as a multiplier. $\sqrt 8$=$2\sqrt 2$. Thus the answer is $2\sqrt 2i$.

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

$2i\sqrt 2$

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