Precalculus Examples

$\frac{a - 9}{a^{2} - 9 a}$

Step 1

Factor $a$ out of $a^{2} - 9 a$ .

Tap for more steps...

Step 1.1

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

$\frac{a - 9}{a \cdot a - 9 a}$

Step 1.2

Factor $a$ out of $- 9 a$ .

$\frac{a - 9}{a \cdot a + a \cdot - 9}$

Step 1.3

Factor $a$ out of $a \cdot a + a \cdot - 9$ .

$\frac{a - 9}{a (a - 9)}$

$\frac{a - 9}{a (a - 9)}$

Step 2

Cancel the common factor of $a - 9$ .

Tap for more steps...

Step 2.1

Cancel the common factor.

$\frac{a - 9}{a (a - 9)}$

Step 2.2

Rewrite the expression.

$\frac{1}{a}$

$\frac{1}{a}$

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