This video shows how to solve general high-order linear differential equation systems, using the characteristic polynomial and linear superposition.
Playlist: https://www.youtube.com/playlist?list=PLMrJAkhIeNNTYaOnVI3QpH7jgULnAmvPA
Course Website: http://faculty.washington.edu/sbrunton/me564/
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0:00 Overview
1:56 Guess x(t) = exp(lambda*t) and Plug Into ODE
6:12 Characteristic Polynomial
8:43 The General Solution
11:48 Using Initial Conditions
16:35 It's *not* a Wronskian!!! (or is it!)