Factor 9-w^2 - MathMaster

$9 - w^{2}$

Rewrite $9$ as $3^{2}$ .

$3^{2} - w^{2}$

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

$(3 + w) (3 - w)$

Factor 9-w^2

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