hey we just started doing Derivatives in Math and im a tad bit lost..... i tried reading your calculus introduction section but im having trouble following it .....

so i have to do this questiong

$\displaystyle F(x) = x^3 + 2x^2 + 4x + 3$

i have to find the derivatives using the first principal and limits

this formula $\displaystyle f'(x) = (f(x+h) - f(x))/h $ Where h is approaching 0...i know this is practically asking you the answer but...i dont know how to go about this

could anyone pleas explain what i need to do.....