The roots of polynomial $ p(m) $ are:
$$ \begin{aligned}m_1 &= 1+2i\\[1 em]m_2 &= 1-2i \end{aligned} $$The solutions of $ m^2-2m+5 = 0 $ are: $ m = 1+2i ~ \text{and} ~ m = 1-2i$.
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