Basic Math Examples

$- \frac{4}{(n + 2) (n - 2)} \cdot \frac{n}{n + 1}$

Step 1

Multiply $\frac{n}{n + 1}$ by $\frac{4}{(n + 2) (n - 2)}$ .

$- \frac{n \cdot 4}{(n + 1) ((n + 2) (n - 2))}$

Step 2

Move $4$ to the left of $n$ .

$- \frac{4 n}{(n + 1) (n + 2) (n - 2)}$