Find roots of polynomial $$ p(x) = 18x^3-42x^2+54x+3 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -0.0533\\[1 em]x_2 &= 1.1933+1.3051i\\[1 em]x_3 &= 1.1933-1.3051i \end{aligned} $$Explanation
Polynomial $ 18x^3-42x^2+54x+3 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.
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