Consider the model of an undamped nonlinear spring/mass system given by x'' + 8x - 6x³ + x⁵ = 0.

Use a numerical solver to discuss the nature of the oscillations of the system corresponding to the initial conditions:

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x(0) = -2, x'(0) = x(0) = V2, x'(0) = 1; x(0) = 2, x'(0) = : x(0) = 1, x'(0) = 1; %3D x(0) = 2, x'(0) = 0; x(0) = - V2, x'(0) = -1. %3D