$$3x^3+2x^2-x+5 = 0$$
Answer
$$ \begin{matrix}x_1 = -1.56258 & x_2 = 0.44796+0.93056i & x_3 = 0.44796-0.93056i \end{matrix} $$
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