#### Answer

-7i

#### 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 49$$=-7$. Thus the answer is -7i.

Published by
Pearson

ISBN 10:
0-32184-874-8

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

-7i

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