Precalculus (6th Edition) Blitzer

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

Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 36

Answer

$16 - 9x^2$

Work Step by Step

RECALL: $(a-b)(a+b)=a^2-b^2$ Use the formula above with $a=4$ and $b=3x$ to obtain: $=4^2-(3x)^2 \\=16 - 9x^2$
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