Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 8 - Radical Functions - 8.5 Complex Numbers - 8.5 Exercises: 70

Answer

$w=\pm 5i$

Work Step by Step

Step 1: $w^{2}+25=0$ Step 2: $w^{2}=-25$ Step 3: Using the square root property, $w=\pm\sqrt {-25}$. Step 4: $w=\pm\sqrt {-1\times25}$ Step 5: $w=\pm\sqrt {-1}\times\sqrt {25}$ Step 6: $w=\pm i\times5$ Step 7: $w=\pm 5i$
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.