Explicit solution of -2x^2y+y^2=1; 2xydx+(x^2-y)dy=0?

How would I go about solving this??? I did find the second problem is an implicit solution of the firsto ne
Update: I'm finding explicit solution, not implicit. Implicit solution is really dy/dx=-2xy/(x^2-y)
Update 2: again please help me out for the explicit solution...not the implicit...i got that already
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