Hey guys I hope you can help me out with these two.

I think the first one is separable but I can't see how to isolate the variables. It's not exact nor can it be made exact by an integrating factor, at least I don't think it can be.

The second one I need to get in terms of y/x (dy/dx = f(y/x)) to use the z substitution method. That root xy has got me stuck.

Any help is much appreciated! Thanks!

-Tony