Answer
$(2x+1)(x-1)$
Work Step by Step
$2x^2-x-1=2x^2+x-2x-1=x(2x+1)-1(2x+1)=(2x+1)(x-1)$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
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 363: 116
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