Answer
$x^2+4x-12$
Work Step by Step
Using the distributive property of polynomials, the expression becomes $$=x(x+6)-2(x+6)$$ $$=x^2+6x-2x-12=x^2+4x-12$$
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 - Exercises for Skills for Factoring - Page 134: 11
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