Factor 64-9x^2 - MathMaster

$64 - 9 x^{2}$

Rewrite $64$ as $8^{2}$ .

$8^{2} - 9 x^{2}$

Rewrite $9 x^{2}$ as ${(3 x)}^{2}$ .

$8^{2} - {(3 x)}^{2}$

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 8$ and $b = 3 x$ .

$(8 + 3 x) (8 - (3 x))$

Multiply $3$ by $- 1$ .

$(8 + 3 x) (8 - 3 x)$

Factor 64-9x^2

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