Find roots of polynomial $$ p(x) = x^3+120x^2+4200x+126000 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -88.6568\\[1 em]x_2 &= -15.6716+34.2872i\\[1 em]x_3 &= -15.6716-34.2872i \end{aligned} $$Explanation
Polynomial $ x^3+120x^2+4200x+126000 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.
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