tolong dong yang no 7

[tex]lim \: \: \: \: \: \frac{ {x}^{2} - 9 }{ {x}^{2} - 3} \\ x - 3 \\ = \frac{ {3}^{2} - 9 }{ {3}^{2} - 3} \\ = \frac{9 - 9}{9 -3 } \\ = \frac{0}{6} \\ = 0[/tex]