Answer
$3x^2+15x$
Work Step by Step
The Distributive Property states:
$a(b+c)=a\cdot b+a\cdot c$
We apply the Distributive Property:
$3x(x+5)$
$=3x(x)+3x(5),$
$=3x^2+15x$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Section 5.1 - Adding and Subtracting Polynomials - Exercise Set - Page 351: 127
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