Find the product. (12p - 3)(12p + 3)

asked Mar 3, 2017 195k views

5 votes

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3 votes

(12p * 12p)+(12p * 3)+(-3 *12p)+(-3 * 3)
144p^2 + 36p + (-36p) + (-9) =
144p^2 - 9

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6 votes

$(a-b)(a+b)=a^2-b^2 \\ \\ (12p-3)(12p+3) = (12p)^2-(3)^2=\boxed {\bf {144p^2 -9}}$

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