Answer
$(x+2)(x-2)(2x+1)$
Work Step by Step
$2x^3+x^2-8x-4=x^2(2x+1)-4(2x+1)=(x^2-4)(2x+1)=(x^2-2^2)(2x+1)=(x+2)(x-2)(2x+1)$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - p.4 - Factoring Polynomials - Exercises - Page 39: 63
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