Separable Variable
1. **Problem Statement:** Solve the differential equation using the method of separable variables.
2. **General Approach:** A separable differential equation can be written as $$\frac{dy}{dx} = g(x)h(y)$$ which can be rearranged to $$\frac{1}{h(y)} dy = g(x) dx$$.
3. **Step-by-step Solution:**
- Separate variables: move all terms involving $y$ to one side and all terms involving $x$ to the other.
- Integrate both sides: $$\int \frac{1}{h(y)} dy = \int g(x) dx + C$$ where $C$ is the constant of integration.
- Solve the resulting equation for $y$ if possible.
4. **Important Notes:**
- Always check the domain of the solution.
- The constant $C$ represents the family of solutions.
This method transforms the differential equation into integrals that can be evaluated to find the implicit or explicit solution for $y$ in terms of $x$.