# Homework Help: Differential equation, Bernoulli's

1. Sep 10, 2013

### Lorenc

1. The problem statement, all variables and given/known data

Hello everybody :) Now, I have a differential equation to solve. Its a Bernoulli's type of eq.

2. Relevant equations

(2x2lny-x)y' = y

3. The attempt at a solution

I tried of putting it in this way: y'/y = 1/2x2lny-x and then considerin z=1/y, but it doesnt seem to solve the problem, because the lny sort of gets in the way. Any help would be appreciated. Thanks :)

2. Sep 10, 2013

### vanhees71

Substitute $z=\ln y$ into the equation. Hint: Evaluate the derivative $z'$ first!

3. Sep 10, 2013

### Lorenc

The only thing I hadn't tried :D Thanks a lot :D