Answer
Choice A
Work Step by Step
The expressions $15x$ and $-8x,$ as like terms, were combined to give $7x.$ Thus, this is an example of combining like terms.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 4 - Polynomials - 4.5 Multiplication of Polynomials - 4.5 Exercise Set - Page 268: 4
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