berapa yaa jawabannya ? tolong penjelasannya

Bab Limit

[tex] \lim_{n \to\ -2} \frac{x+2}{x^2 -5x - 14} [/tex]
[tex] = \lim_{n \to\ -2} \frac{x+2}{(x-7)(x+2)} [/tex]
[tex] = \lim_{n \to\ -2} \frac{1}{x-7} [/tex]
[tex] = \frac{1}{-2-7} [/tex]
[tex] = - \frac{1}{9} [/tex]