The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 0.5811\\[1 em]x_2 &= -2.5811 \end{aligned} $$The solutions of $ 2x^2+4x-3 = 0 $ are: $ x = -1-\dfrac{\sqrt{ 10 }}{ 2 } ~ \text{and} ~ x = -1+\dfrac{\sqrt{ 10 }}{ 2 }$.
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