Classify (if possible) each critical point of the given second-order differential equation as a stable node, a stable spiral point, an unstable spiral point, an unstable node, or a saddle point. (Assume y = x'. Order your answers from smallest to largest x, then from smallest to largest y.) x" + x = = (1/12 - 9(ײ) ²)x¹ - x² X (x, y) = (x, y) = Conclusion saddle point unstable spiral point

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