Trigonometry Examples

$f (x) = 2 x^{2} - 4$

Step 1

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

$f (x) = 2 (x^{2}) - 4$

Step 2

Factor $2$ out of $- 4$ .

$f (x) = 2 x^{2} + 2 \cdot - 2$

Step 3

Factor $2$ out of $2 x^{2} + 2 \cdot - 2$ .

$f (x) = 2 (x^{2} - 2)$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$