Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 5 - Section 5.4 - Factoring Trinomials - Exercise Set - Page 361: 32



Work Step by Step

All terms are divisible by $4$, so factor out $4$ to obtain: $=4(x^2-x-2)$ Factor the trinomial. Look for factors of $-2$ whose sum is $-1$. These factors are $1$ and $-2$. This means that the trinomial can be factored as $(x+1)(x-2)$. Thus, the completely factored form of the given polynomial is: $=4(x+1)(x-2)$
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