The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -\frac{ 1 }{ 2 }+2i\\[1 em]x_2 &= -\frac{ 1 }{ 2 }-2i \end{aligned} $$The solutions of $ 4x^2+4x+17 = 0 $ are: $ x = -\dfrac{ 1 }{ 2 }+2i ~ \text{and} ~ x = -\dfrac{ 1 }{ 2 }-2i$.
You can use step-by-step quadratic equation solver to see a detailed explanation on how to solve this quadratic equation.