Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Review Exercises - Page 143: 101



Work Step by Step

$ 3x^{4}-12x^{2}\quad $ ... factor out $3x^{2}$ $=3x^{2}(x^{2}-4)$ The parentheses hold a difference of squares, $ x^{2}-2^{2}$, thus: $=3x^{2}(x+2)(x-2)$
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