Answer
$16y^2-4$
Work Step by Step
The given expression is
$=(4y+2)(4y-2)$
Use sum and difference pattern $(a+b)(a-b)=a^2-b^2$.
We have $a=4y$ and $b=2$.
$=(4y)^2-2^2$
Simplify.
$=16y^2-4$
Hence, the product is $16y^2-4$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 8 - Graphing Quadratic Functions - 8.6 - Comparing Linear, Exponential, and Quadratic Functions - Exercises - Page 468: 48
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