The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 283.938\\[1 em]x_2 &= 26.062 \end{aligned} $$The solutions of $ -x^2+310x-7400 = 0 $ are: $ x = 155-5 \sqrt{ 665 } ~ \text{and} ~ x = 155+5 \sqrt{ 665 }$.
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