Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 8 - Section 8.2 - The Quadratic Formula - Concept and Vocabulary Check - Page 607: 5

Answer

$x = -1±-24i$

Work Step by Step

$x = \frac{-4±\sqrt{4^2-4⋅2⋅5}}{2⋅2}$ $x = \frac{-4±\sqrt{16-40}}{4}$ $x = -1±\sqrt{-24}$ $x = -1±\sqrt{-24}⋅\sqrt{-1}$ $x = -1±-24i$
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