Find roots of polynomial $$ p(x) = 6x^3-16x^2+81x-126 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 1.7636\\[1 em]x_2 &= 0.4515+3.421i\\[1 em]x_3 &= 0.4515-3.421i \end{aligned} $$Explanation
Polynomial $ 6x^3-16x^2+81x-126 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.
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