$$x^3-4x^2+x+36 = 0$$
Answer
$$ \begin{matrix}x_1 = -2.31054 & x_2 = 3.15527+2.37172i & x_3 = 3.15527-2.37172i \end{matrix} $$
Explanation
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using qubic formulas.
This page was created using
Polynomial Equations Solver