Answer
(-12+8i) - (7+4i) = -19+4i
Work Step by Step
1. (-12+8i) - (7+4i)
2. Distribute the - sign: -12+8i-7-4i
3. Combine like terms: -19+4i
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.6 - Complex Numbers - 1.6 Exercises - Page 64: 25
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