College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.3 - Complex Numbers - 1.3 Exercises: 53

Answer

$-14+2i$

Work Step by Step

Use the FOIL method to multiply the binomials. $-2+6i-4i+12i^2$ Substitute $-1$ for $i^2$. Also, add/subtract like terms. $-2+2i+12(-1)$ Simplify. $-14+2i$
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