Answer
See example
Work Step by Step
The formula is the following
$x=\frac{-b \pm \sqrt {b^2-4ac}}{2a}$
Using it:
$x=\frac{-6 \pm \sqrt {36-4*1*(-1)}}{2}=-3 \pm \sqrt{10}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 1, Equations and Graphs - Chapter 1 Review - Concept Check - Page 168: 14
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