Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.5 - Complex Numbers - 1.5 Exercises - Page 119: 12

Answer

4+7i

Work Step by Step

We know that $i=\sqrt{-1}$. Thus, simplifying the equation, we find: $$4+ \sqrt{49}\sqrt{-1} \\ 4+ 7i$$
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