How Do You Solve a Nonlinear Differential Equation with Polynomial Terms?

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coverband

Homework Statement

[tex]\frac{d^2x}{dt^2}-x-ax^2+bx^3=0[/tex]

Please help me start this. I've never seen a d.e. with [tex]ax^2+bx^3[/tex]

I think it ends as a fourier. Not sure. Please help me start!

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madmike159

Gold Member

Are you given any other values?