$$6x^3+4x^2-3x+9 = 0$$
Answer
$$ \begin{matrix}x_1 = -1.58204 & x_2 = 0.45768+0.85946i & x_3 = 0.45768-0.85946i \end{matrix} $$
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