diff-equation

Question: The solution of the differential equation $(3xy+{{y}^{2}})dx+({{x}^{2}}+xy)dy=0$ is



1) ${{x}^{2}}(2xy+{{y}^{2}})={{c}^{2}}$
2) ${{x}^{2}}(2xy-{{y}^{2}})={{c}^{2}}$
3) ${{x}^{2}}({{y}^{2}}-2xy)={{c}^{2}}$
4) None of these
Solution: Explanation: No Explanation
Homogeneous differential equations

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