Pre-Algebra Examples

$- x^{4} + 4 x^{2} - 5$

Step 1

Factor $- 1$ out of $- x^{4}$ .

$- (x^{4}) + 4 x^{2} - 5$

Step 2

Factor $- 1$ out of $4 x^{2}$ .

$- (x^{4}) - (- 4 x^{2}) - 5$

Step 3

Rewrite $- 5$ as $- 1 (5)$ .

$- (x^{4}) - (- 4 x^{2}) - 1 (5)$

Step 4

Factor $- 1$ out of $- (x^{4}) - (- 4 x^{2})$ .

$- (x^{4} - 4 x^{2}) - 1 (5)$

Step 5

Factor $- 1$ out of $- (x^{4} - 4 x^{2}) - 1 (5)$ .

$- (x^{4} - 4 x^{2} + 5)$