Answer
$\color{blue}{x^2+6x+9}$
Work Step by Step
RECALL:
$(a+b)^2=a^2+2ab+b^2$
Use the formulal above to obtain:
$(3+x)^2
\\=3^2+2(3)(x)+x^2
\\=9+6x+x^2
\\=\color{blue}{x^2+6x+9}$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 7 - Functions and Graphs - 7.5 Formulas, Applications, and Variation - 7.5 Exercise Set - Page 489: 86
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
