Answer
$(x+4)(x^2+1)$
Work Step by Step
Regroup to obtain:
$=(x^3+4x^2)+(x+4)$
Factor out $x^2$ in the first group to obtain:
$=x^2(x+4)+(x+4)$
Factor out the greatest common factor $(x+4)$ to obtain:
$=(x+4)(x^2+1)$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Section P.6 - Factoring - P.6 Exercises - Page 42: 47
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