Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.1 - Radicals and Radical Functions - Exercise Set - Page 418: 99


not a real number

Work Step by Step

We know that $\sqrt -17$ is not a real number. We cannot take the square root of negative numbers, because there is no number $a$ that, when multiplied by itself, will produce a negative number. In other words, $a^{2}\geq0$ (where $a$ is a real number).
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.