# Thread: How to solve this equation

1. $\displaystyle y''(x)+y'(x)+F(x)=0$

Pleas me a idea

2.

3. Originally Posted by Another
$\displaystyle y''(x)+y'(x)+F(x)=0$

Pleas me a idea
Let y'(x) = v(x). Then your equation becomes v'(x) + v(x) = -F(x)

Now you have a first degree linear ordinary differential equation. You can't write down a final answer, but there is a method by which you can write it out in terms of F(x)...

-Dan