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