Find roots of polynomial $$ p(x) = 6x^7-2x^6+4x^5+2x^4-6x^3+9x^2+x+3 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -1.1258\\[1 em]x_2 &= -0.1471+0.51i\\[1 em]x_3 &= -0.1471-0.51i\\[1 em]x_4 &= 0.0026+1.1994i\\[1 em]x_5 &= 0.0026-1.1994i\\[1 em]x_6 &= 0.8741+0.5759i\\[1 em]x_7 &= 0.8741-0.5759i \end{aligned} $$Explanation
Polynomial $ 6x^7-2x^6+4x^5+2x^4-6x^3+9x^2+x+3 $ has no rational roots that can be found using Rational Root Test, so the roots were found using Newton method.
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