Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.5 - Quadratic Equations: Complex Solutions - Problem Set 11.5 - Page 497: 31

Answer

The answer is below.

Work Step by Step

I would use the quadratic formula. After all, the given equation is not easily factorable. When this is the case, it is best to use the quadratic formula, for trying to figure out which other possibility to use sometimes takes longer and is more complicated than just using the quadratic formula in the first place.
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