Differential Equations Q1

Find the general solutions of the following differential equations:

1. \({\left( x+2 \right)\frac{\mathrm{d}y}{\mathrm{d}x}=y}\)
2. \({\frac{\mathrm{d}y}{\mathrm{d}x}=\frac{3xy-2x}{1-{{x}^{2}}}}\)
3. \({y\frac{\mathrm{d}y}{\mathrm{d}x}=x{{y}^{2}}+3x}\)
4. \({\sqrt{x}\frac{\mathrm{d}y}{\mathrm{d}x}=y{{\mathrm{e}}^{\sqrt{x}}}}\)