Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.3 Complex Numbers - 1.3 Exercises - Page 112: 49



Work Step by Step

Subtract each term of the subtrahend to obtain: $=-2+4i-(-4)-4i \\=-2+4i+4-4i$ Combine like terms to obtain: $=(-2+4) + (4i-4i) \\=2+0i \\=2$
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.