1. ## 1st Order DE

I'm having trouble in approaching this problem
$2x dy + (x^2y^4+1)y dx=0$

Is it an exact equation needing an integration factor...?

2. Write it as

$\dfrac{dy}{dx} +\dfrac{y}{2x} = - \dfrac{x y^5}{2}$

It's Bernoulli.

3. Thanks!