How do I apply integrating factor to solve this differential equation? $$x \frac{dy}{dx}  +  y  =  -2x^6y^4$$
I tried to find the general solution by dividing both sides by $x$  or $x^6$ but no solution I could get.. Do I even solve it with integrating factor?

It's already a derivative so you don't need an integrating factor.$(\mu =1)$
$$x \frac{dy}{dx}  +  y  =  -2x^6y^4$$
$$ \implies (xy)'=  -2x^2(xy)^4$$
Then integrate
$$ \implies \int \frac  {d(xy)}{(xy)^4}=  -2\int x^2 dx$$
