Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 6 - Logarithmic Functions - 6.5 Solving Exponential Equations - 6.5 Exercises: 69

Answer

$n = 1.088, -1.838$

Work Step by Step

$4n^{2} +3n - 8 = 0$ $n = \frac{-3±\sqrt {3^{2}-4(4)(-8)}}{2(4)}$ $n = \frac{-3±\sqrt {9+128}}{8}$ $n = \frac{-3±\sqrt {137}}{8}$ $n = 1.088, -1.838$
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