Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 4 - Quadratic Functions and Equations - Cumulative Standards Review - Multiple Choice: 22

Answer

$25$

Work Step by Step

$(4+3\iota)$$(4-3\iota)$ Multiply using the FOIL method: $=(4\times4)+(4\times-3i)+(3i\times4)+(3i \times-3i) \\=16-12i+12i-9i^2 \\=16+9+0i \\=25$
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