The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 50.6476\\[1 em]x_2 &= -42.6476 \end{aligned} $$The solutions of $ x^2-8x-2160 = 0 $ are: $ x = 4-8 \sqrt{ 34 } ~ \text{and} ~ x = 4+8 \sqrt{ 34 }$.
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