The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 2.8284i\\[1 em]x_2 &= -2.8284i\\[1 em]x_3 &= -2+2.4495i\\[1 em]x_4 &= -2-2.4495i \end{aligned} $$Polynomial $ x^4+4x^3+18x^2+32x+80 $ has no rational roots that can be found using Rational Root Test, so the roots were found using quartic formulas.