Explore a comprehensive 3-hour 30-minute tutorial on differential equations, covering a wide range of topics and techniques. Begin with separation of variables and integrating factors for solving ordinary differential equations (ODEs). Progress through exact equations, linear models, and applications of linear ODEs. Delve into advanced concepts such as series solutions, regular singular points, and the method of Frobenius. Study the Legendre equation and its properties. Master the Laplace transform, including its definition, linearity properties, and inverse transformations. Learn to solve initial value problems using Laplace transforms and unit step functions. Examine systems of linear differential equations with real and complex eigenvalues. Conclude with specialized equation types like Bernoulli and homogeneous differential equations. Gain practical problem-solving skills through numerous examples and full solutions throughout the tutorial.