Precalculus Examples

$\frac{x^{2} - 5 x - 5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$

Step 1

Split the fraction $\frac{x^{2} - 5 x - 5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$ into two fractions.

$\frac{x^{2} - 5 x}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} + \frac{- 5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$

Step 2

Split the fraction $\frac{x^{2} - 5 x}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$ into two fractions.

$\frac{x^{2}}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} + \frac{- 5 x}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} + \frac{- 5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$

Step 3

Move the negative in front of the fraction.

$\frac{x^{2}}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} - \frac{5 x}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} + \frac{- 5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$

Step 4

Move the negative in front of the fraction.

$\frac{x^{2}}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} - \frac{5 x}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40} - \frac{5}{x^{4} - 5 x^{3} - 9 x^{2} + 40 x + 40}$