Answer
C
Work Step by Step
Find the greatest common factor. Find the factors of each term and multiply the factors that are common to all the terms.
$21n^3=7×3×n×n×n$
$18n^2=6×3×n×n$
$GCF=3×n×n=3n^2$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - 8-2 Multiplying and Factoring - Lesson Check - Page 494: 5
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