# Homework Help: Second order differential equation

1. Sep 23, 2010

### Mugged

Hi, i need help solving this equation:

$$y'' + 4y' + 4y = 0$$

any help is appreciated!

2. Sep 23, 2010

### rock.freak667

What attempt have you made?

Here is a hint: For a 2nd order DE with constant coefficients, try using y=emx as a trial solution.