Answer
$$x=\frac{-1+\sqrt{6}}{5},\:x=-\frac{1+\sqrt{6}}{5}$$
Work Step by Step
Using the quadratic formula:
$$ x=\frac{-2 \pm \sqrt{2^2-4\cdot \:5\left(-1\right)}}{2\cdot \:5} \\ x=\frac{-1+\sqrt{6}}{5},\:x=-\frac{1+\sqrt{6}}{5}$$
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
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
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