Factor 2h^2-2 - Math solver

$2 h^{2} - 2$

Factor $2$ out of $2 h^{2} - 2$ .

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Factor $2$ out of $2 h^{2}$ .

$2 (h^{2}) - 2$

Factor $2$ out of $- 2$ .

$2 (h^{2}) + 2 (- 1)$

Factor $2$ out of $2 (h^{2}) + 2 (- 1)$ .

$2 (h^{2} - 1)$

Rewrite $1$ as $1^{2}$ .

$2 (h^{2} - 1^{2})$

Factor.

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Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = h$ and $b = 1$ .

$2 ((h + 1) (h - 1))$

Remove unnecessary parentheses.

$2 (h + 1) (h - 1)$

Factor 2h^2-2

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