Answer
$= (a-6)(a-3)$
Work Step by Step
$a^{2} -3a- 6a + 18$
$= a(a-3) - 6(a-3)$
$= (a-6)(a-3)$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 3 - Exponents, Polynomials and Functions - 3.4 Factoring Polynomials - 3.4 Exercises - Page 270: 18
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