Answer
a) $26$
b) $x^2+10x+25$
Work Step by Step
a) For $x=1$, we have:
$(1+5)^2=36\ne 1^2+25=26$
b) $(x+5)^2=x^2+5x+5x+25=x^2+10x+25$
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.5 - Algebraic Expressions - P.5 Exercises - Page 37: 93
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