Precalculus Examples

$\frac{(n + 5) (n - 5)}{{(n + 5)}^{2}}$

Step 1

Factor $n + 5$ out of ${(n + 5)}^{2}$ .

$\frac{(n + 5) (n - 5)}{(n + 5) (n + 5)}$

Step 2

Cancel the common factor.

$\frac{(n + 5) (n - 5)}{(n + 5) (n + 5)}$

Step 3

Rewrite the expression.

$\frac{n - 5}{n + 5}$

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