Question

f(x)=x^3+5 on [-2,2]

Answer 1

Okay...?

Answer 2

Are you integrating or finding extrema?

Answer 3

Guessing the question is:

f(x)=x^3+5 on [-2,2] has:

a max, but not min
neither a mx nor a min
both a max and min
min but not a max

Answer 4

You may have to first find any critical points, so first where find f'(x) = 0, then you'll have to check with either the first derivative test, or second derivative test, to see if that's a turning point (max or min) or just a saddle point.