$$x^3-3x+1 = 0$$
Answer
$$ \begin{matrix}x_1 = 0.3473 & x_2 = 1.53209 & x_3 = -1.87939 \end{matrix} $$
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