Answer
$16-4x^{2}$
Work Step by Step
(4+2x)(4-2x)
1. Square the first term. $(4)^{2} = 16$
2. Multiply the first and second term together. $(2x)(-2x) = -4x^{2}$
3. Add your answers from steps 1-2 to get $16-4x^{2}$.
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 0 - Section 0.3 - Multiplying and Factoring Algebraic Expressions - Exercises - Page 21: 14
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