📢 QuizNe.vn will officially cease operations on 27/08/2026. Thank you for being with us.
- $y=\frac{x^{2}+1}{x}$
- $y=\frac{2 x-2}{x+1}$
- $y=x^{2}-2 x+1$
- $y=-x^{3}+x+1$