Answer
$x^2+8x+13$
Work Step by Step
Multiply the binomials first:
\begin{align*}
&=x(x+4)+4(x+4)-3\\
&=x^2+4x+4x+16-3\\
&=x^2+8x+13
\end{align*}
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 - 4-5 Quadratic Equations - Practice and Problem-Solving Exercises - Page 231: 73
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