Question

ative extrema Find the value(s) of any relative extrema Find the x-values of all points where the function has any re tox)-x-18x2-4 First find the derivative of f(x) Now find any critical numbers of t(x) (Use a comma to separate answers as needed) O B. There are no critical numbers of fx) in any answer boxes within your choice O A. O B. The function has a relative maximum of O C. 0 D. There are no relative extrema es of all points where the function Select the correct choice below and, if necessary, fill e the function has any relative extrema Find the value(s) of any relative extrema There are no relative minima The function has a relative maximum of厂] at (Use a comma to separate answers as needed) at x at xand a relative minimum of (Use a comma to separate answers as needed ) There are no relative maxima The function has a relative minimum of atx (Use a comma to separate answers as needed)

Answer 1

1.
=4x^3-36x

2.

Point where f'(x)=0
x=0,3,-3

3.
The function has a relative maximum of (0^4-18*0^2-4)=-4 at x=0
and a relative minimum of (3^4-18*3^2-4)=-85 at x=-3,3