Answer
$(s+3)^2-17$
Work Step by Step
Since $(s+3)^2=s^2+3s+3s+9=s^2+6s+9$, $s^2+6s-8$ can be written as $(s^2+6s+9)-17=(s+3)^2-17$.
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 - 3.2 The Vertex of a Parabola - Exercises and Problems for Section 3.2 - Skill Refresher - Page 127: S2
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