Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - p.4 - Factoring Polynomials - Exercises - Page 39: 15

Answer

$(x+1)(x-3)$

Work Step by Step

$(x-1)^2-4=(x-1)^2-2^2=[(x-1)+2][(x-1)-2]=(x+1)(x-3)$
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