Solve each differential equation for the general solution.

a$.$ x$($dy$)/($dx$)+$y$=$y$^(-2)$

b$.(2$x$-2$y$^(2))$dx$+(12$y$^(2)-4$xy$)$dy$=0$

c$.$ x$($dy$)/($dx$)+2$y$=3$

d$.($dy$)/($dx$)+2$xy$^(2)=0$