Tolong Pakai caranya mksh

lim x=>4 x²-6x+8 per x-4
lim x=>4 4²-6×4+8 per 4-4
lim x=>4 16-24+8 per 0
lim x=>4 0 per 0
lim x=>4 0

[tex]lim_{x - > 4} \frac{ {x}^{2} - 6x + 8}{x - 4} \\ = \frac{(x - 2)(x - 4)}{x - 4} \\ = x - 2 \\ = 4 - 2 \\ = 2[/tex]
semoga membantu..........