Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 3 - Quadratic Functions - Review Exercises and Problems for Chapter Three - Page 129: 7



Work Step by Step

Using the quadratic formula: $$ x=\frac{-2 \pm \sqrt{2^2-4\cdot \:5\left(-1\right)}}{2\cdot \:5} \\ x=\frac{-1+\sqrt{6}}{5},\:x=-\frac{1+\sqrt{6}}{5}$$
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