The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -6+8i\\[1 em]x_2 &= -6-8i \end{aligned} $$The solutions of $ 10x^2+120x+1000 = 0 $ are: $ x = -6+8i ~ \text{and} ~ x = -6-8i$.
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