$$-x^3+41x^2-378x+26 = 0$$
Answer
$$ \begin{matrix}x_1 = 0.0693 & x_2 = 13.85724 & x_3 = 27.07346 \end{matrix} $$
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