Solve (15x-x^3)^2

Simplify the expression

225 x^{2} - 30 x^{4} + x^{6}

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x^{2} (15 - x^{2})^{2}

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x_{1} = - 15, x_{2} = 0, x_{3} = 15

Alternative Form

x_{1} \approx - 3.872983, x_{2} = 0, x_{3} \approx 3.872983

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