Answer
$x^3+125$
Work Step by Step
$$(x+5)(x^2-5x+25)$$ $$=(x\times x^2)+(x\times (-5x))+(x\times25)+(5\times x^2)+(5\times (-5x))+(5\times25)$$ $$=x63-5x^2+25x+5x^2-25x+125$$ $$=x^3+125$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4 - Page 61: 16
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