Multiply.
-(2x + 4)(2x - 4)
A) $2 x ^ { 2 } - 16 x - 16$
B) $4 x ^ { 2 } - 16 x - 16$
C) $4 x ^ { 2 } - 16$
D) $4 x ^ { 2 } + 16 x - 16$

Name: Multiply. -(2x + 4)(2x - 4) A) $2 x ^ { 2 } - 16 x - 16$ B) $4 x ^ { 2 } - 16 x - 16$ C) $4 x ^ { 2 } - 16$ D) $4 x ^ { 2 } + 16 x - 16$
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Question

Quizplus · Accepted Answer

This is an application of the difference of squares formula, $a^2 - b^2 = (a + b)(a - b)$. Here, $a = 2x$ and $b = 4$, so the product is $4x^2 - 16$.

Multiply -(2x + 4)(2x - 4) A) 2x2−16x−162 x ^ { 2 } - 16 x - 162x2−16x−16

Multiply
-(2x + 4)(2x - 4)
A) $2 x ^ { 2 } - 16 x - 16$