College Algebra (10th Edition)

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: 42

Answer

$3-4i$

Work Step by Step

We simplify using power rules: $4i^{3}-2i^{2}+1$ $4i^{2}*i^1-2i^{2}+1$ We use the fact that $i^2=-1$ (since $i=\sqrt{-1}$): $4i(-1)-2(-1)+1$ $-4i+2+1$ $3-4i$
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