Answer
$x^2 + 5x - 1$
Work Step by Step
In this exercise, the like terms are the $x$ terms, so let's group like terms:
$x^2 + (x + 4x) - 1$
Combine like terms:
$x^2 + 5x - 1$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 4 - Quadratic Functions and Equations - 4-3 Modeling With Quadratic Functions - Practice and Problem-Solving Exercises - Page 214: 41
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