HELP!!!!! Part 2

[meshun01]

Let f(x) =x^3 -9x. Calulate the difference quotient f(3+h)-f(3)/h for

h=.1 ___________
h=.01 ___________
h=-.01 __________
h=-.1 ___________

 

[galactus]

$\displaystyle \frac{((3+h)^{3}-9(3+h))-(3^{3}-9(3))}{h}$

$\displaystyle =(h+3)(h+6)$