Answer
$-10i$
Work Step by Step
We simplify using power rules:
$6i^{3}-4i^{5}$
$6i^2i^1-4i^4i^1$
We use the fact that $i^2=-1$ (since $i=\sqrt{-1}$):
$6(-1)i-4(-1)^2i$
$-6i-4i$
$-10i$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.3 - Complex Numbers; Quadratic Equations in the Complex Number System - 1.3 Assess Your Understanding - Page 112: 41
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
