# How do you find the critical numbers for #f(x)= x^3 + x^2 + x# to determine the maximum and minimum?

##### 1 Answer

Jun 30, 2017

#### Answer:

It doesn't have any.

#### Explanation:

The critical values for a function are x-values where

Differentiating the function gives:

You can either use the quadratic formula or your graphing calculator to find the zeros of this function. In the end, you'll get the fact that

Because of this,