Precalculus Examples

$- 2 x^{2} - 1$

Step 1

Factor $- 1$ out of $- 2 x^{2}$ .

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

Step 2

Rewrite $- 1$ as $- 1 (1)$ .

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

Step 3

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

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

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