Answer
$x^{2}+8x+16$
Work Step by Step
Using the square of the binomial $(a+b)^{2}=a^{2}+2ab+b^{2}$,
$(x+4)^{2}=x^{2}+2(x)(4)+4^{2}=x^{2}+8x+16$.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Appendix A - Exercise Set - Page 976: 39
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