Answer:
[tex] \frac{1}{ {n} + {2}}[/tex]
Step-by-step explanation:
[tex] \frac{n - 2}{ {n}^{2} - 4} \\ \\ = \frac{n - 2}{ {n}^{2} - {2}^{2} } \\ \\ = \frac{n - 2}{ ({n} + {2})({n} - {2})} \\ \\ = \frac{1}{ {n} + {2}} \\ [/tex]