1. Graphing Functions

I need help graphing the following function using the first and second derivative tests:
f(x)=(3x^2) -6x/(x^2) -x -12
$f(x)= 3x^2 - \frac{-6x}{x^2} - x - 12$
First, determine a sign chart for the first derivative, $f'$
Then determine a sign chart for the second derivative, $f"$