College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.5 - Factoring Polynomials - R.5 Exercises: 123

Answer

$(x-1)(x+1)(x+2)$

Work Step by Step

We factor by grouping to obtain: $x^{3}+2x^{2}-x-2 =x^{2}(x+2)-1(x+2) =(x^{2}-1)(x+2) =(x-1)(x+1)(x+2)$
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