# Chapter 10 - Exponents and Radicals - 10.8 The Complex Numbers - 10.8 Exercise Set - Page 686: 12

$i\sqrt 7$

#### 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. $\sqrt 7$ is not reducible. Thus the answer is $\sqrt 7$i.

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