$\displaystyle \lim_{x \to 0} f(x)/x^2 = 6$

I'm supposed to find the limit of $\displaystyle f(x)$ and the limit of $\displaystyle f(x)/x$. (As $\displaystyle x$ approaches 0 in both cases)

I've looked through the entire section of my textbook and I don't see anything directly covering this question. Any hints?