Evaluate the following limits:

1.	$\displaystyle\lim_{x\to\infty} \frac{4x^{3}-7x^{2}-3x}{9-11x-7x^{3}}$	=
2.	$\displaystyle\lim_{x\to-\infty} \frac{4x^{3}-7x^{2}-3x}{9-11x-7x^{3}}$	=