Answer:
[tex](-\infty,\infty)[/tex]
Step-by-step explanation:
[tex]\lim_{x \to -\infty} f(x) = - \infty\\\lim_{x \to \infty} f(x) = \infty[/tex]
Furthermore, a polynomial is continuous, so by the intermediate value theorem, for each value y there exists a value for x such that y = f(x), so the range is (-\infty, \infty)
