Question

Find the derivative of f 0f x.

f(x) = x^2 - 8x - 17 at x = 4

Answer 1

First you try it
Use the general idea that
d/dx x^n = n x^(n-1)

for example

d/dx x^16 = 16 x^15

to evaluate that at x = 1
16 1^15 = 16

Answer 2

I am trying to say try to do it yourself first. That is the rule for differentiating powers of x.