# How do you find the local max and min for #f(x)=2x^3 + 5x^2 - 4x - 3#?

##### 1 Answer

May 11, 2018

See explanations below.

#### Explanation:

What we know is that there's a local extremum when

Now we can clearly see that when

Also, we know that out of roots,

\0/ here's our answer!