How Do You Determine Critical Points from a Derivative?

[n.a.s.h]

Homework Statement

find the derivative and critical points of the function

f(x)= x^3-x^2+5

Homework Equations

The Attempt at a Solution

I tried to find the derivative: 3x^2-2x but I am not sure how to find the critical points from here...

 

[Mark44]

Homework Statement

find the derivative and critical points of the function

f(x)= x^3-x^2+5

Homework Equations

The Attempt at a Solution

I tried to find the derivative: 3x^2-2x but I am not sure how to find the critical points from here...

What does your textbook say about finding critical points?