Answer
$17+i$
Work Step by Step
Step 1: $(1+3i)(2-5i)$
Step 2; $1(2-5i)+3i(2-5i)$
Step 3: $2-5i+6i-15i^{2}$
Step 4: $2+i-15(-1)$
Step 5: $2+i+15$
Step 6: $17+i$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 358: 66
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