Find roots of polynomial $$ p(x) = 4x^4+11x^3-8x^2-16x+6 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 0.3471\\[1 em]x_2 &= -1.321\\[1 em]x_3 &= 1.1268\\[1 em]x_4 &= -2.903 \end{aligned} $$Explanation
Polynomial $ 4x^4+11x^3-8x^2-16x+6 $ has no rational roots that can be found using Rational Root Test, so the roots were found using quartic formulas.
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