Multiply.
-(13p + 9)(13p - 9)
A) $169 p ^ { 2 } + 234 p - 81$
B) $p ^ { 2 } - 81$
C) $169 p ^ { 2 } - 81$
D) $169 p ^ { 2 } - 234 p - 81$

Name: Multiply. -(13p + 9)(13p - 9) A) $169 p ^ { 2 } + 234 p - 81$ B) $p ^ { 2 } - 81$ C) $169 p ^ { 2 } - 81$ D) $169 p ^ { 2 } - 234 p - 81$
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Question

Quizplus · Accepted Answer

This is an example of a difference of squares, which follows the formula $a^2 - b^2 = (a + b)(a - b)$. Here, $a = 13p$ and $b = 9$, so the product is $169p^2 - 81$.

Multiply -(13p + 9)(13p - 9) A) 169p2+234p−81169 p ^ { 2 } + 234 p - 81169p2+234p−81

Multiply
-(13p + 9)(13p - 9)
A) $169 p ^ { 2 } + 234 p - 81$