The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -\frac{ 3 }{ 2 }\\[1 em]x_2 &= -4 \end{aligned} $$The solutions of $ -2x^2-11x-12 = 0 $ are: $ x = -4 ~ \text{and} ~ x = -\dfrac{ 3 }{ 2 }$.
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