\(\mathop {\lim }\limits_{x...

B

- Hướng dẫn giải

\(\mathop {\lim }\limits_{x \to  + \infty } \frac{{2{x^4} + {x^3} - 2{x^2} - 1}}{{x - 2{x^4}}} = \mathop {\lim }\limits_{x \to  + \infty } \frac{{2 + \frac{1}{x} - \frac{2}{{{x^2}}} - \frac{1}{{{x^4}}}}}{{\frac{1}{{{x^3}}} - 2}} =  - 1\)