$$x^3-x^2+4x+4 = 0$$
Answer
$$ \begin{matrix}x_1 = -0.75217 & x_2 = 0.87609+2.13317i & x_3 = 0.87609-2.13317i \end{matrix} $$
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