17] For each of the following equations, • find general solutions; • solve the initial value problem with initial condition y(0) = -1, y'(0) = 2; • sketch the phase portrait, identify the type of each equilibrium, and determine the stability of each equilibrium. %3D (a) 2y" + 9y' + 4y = 0 (b) y" + 2y' – 8y = 0 (c) 4y" – 12y' + 5y = 0

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