Answer
$2x+ 8$
Work Step by Step
$(x+4)+(x+4) $
$= x+4 +x+4$
$= x+x + 4+ 4$
$= 2x+ 8$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Integrated Review - Exponents and Operations on Polynomials - Page 391: 27
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