Question: A second-order DE of the form x + F(x) = 0 is called a conservative differential equation. (See Sec. 4.7.) Find the equilibrium points of

A second-order DE of the form x + F(x) = 0 is called a conservative differential equation. (See Sec. 4.7.) Find the equilibrium points of the conservative equation i + x - x2 - 2x3 = 0 and determine their type and stability.

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