$$2x-11+4x^3+3x-5x+x^3 = 0$$
Answer
$$ \begin{matrix}x_1 = 1.30059 & x_2 = -0.6503+1.12635i & x_3 = -0.6503-1.12635i \end{matrix} $$
Explanation
$$ \begin{aligned} 2x-11+4x^3+3x-5x+x^3 &= 0&& \text{simplify left side} \\[1 em]2x-11+4x^3+x^3-2x &= 0&& \\[1 em]5x^3-11 &= 0&& \\[1 em] \end{aligned} $$
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using qubic formulas.
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Polynomial Equations Solver