Final answer to the problem
$9x^2-16$
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Step-by-step Solution
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1
Apply the formula: $\left(a+b\right)\left(a+c\right)$$=a^2-b^2$, where $a=3x$, $b=4$, $c=-4$, $a+c=3x-4$ and $a+b=3x+4$
$\left(3x\right)^2-16$
Learn how to solve prodotti speciali problems step by step online.
$\left(3x\right)^2-16$
Learn how to solve prodotti speciali problems step by step online. Solve the product (3x+4)(3x-4). Apply the formula: \left(a+b\right)\left(a+c\right)=a^2-b^2, where a=3x, b=4, c=-4, a+c=3x-4 and a+b=3x+4. Apply the formula: \left(ab\right)^n=a^nb^n. Apply the formula: a^b=a^b, where a=3, b=2 and a^b=3^2.
Final answer to the problem
$9x^2-16$
