The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 1.9023\\[1 em]x_2 &= 0.0488+1.1453i\\[1 em]x_3 &= 0.0488-1.1453i \end{aligned} $$Polynomial $ 2x^3-4x^2+3x-5 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.