Question

suppose that f(x+h)-f(X)=3hx-3h-2h^2 find f'(x).

Answer 1

do you agree that \[f'(x) = \lim_{h \rightarrow 0} \frac{f(x+h) - f(x)}h\]

Answer 2

Yes

Answer 3

then there's ^^^ your answer... :)

Answer 4

Thanks!

Answer 5

actually...you still have to divide 3hx - 3h -2h^2 by h

and then substitute h to 0

Answer 6

Yeah I got it I forgot to substitute the 0 in

Answer 7

ahh i see