tolong bantu kak no 31 ya kak..

[tex] \lim_{x = 4 \to} \frac{ x^{2} + 2x - 3}{ x^{2} - 1} \\ \\ \lim_{x = 4 \to} \frac{ x^{2} - x + 3x - 3}{ x^{2} - x + x - 1} \\ \\ \lim_{x = 4 \to} \frac{ x(x-1)+ 3(x-1)}{x(x-1) + 1(x-1)} \\ \\ \lim_{x = 4 \to} \frac{ (x+3)(x-1)}{(x+1)(x-1)} \\ \\ \lim_{x = 4 \to} \frac{ (x+3)}{(x+1)} \\ \\ = \frac{(4+3)}{(4+1)} \\ \\ = \frac{7}{5} [/tex]