The roots of polynomial $ p(s) $ are:
$$ \begin{aligned}s_1 &= -3+4i\\[1 em]s_2 &= -3-4i \end{aligned} $$The solutions of $ 4s^2+24s+100 = 0 $ are: $ s = -3+4i ~ \text{and} ~ s = -3-4i$.
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