Find roots of polynomial $$ p(x) = x^3+x+1 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -0.6823\\[1 em]x_2 &= 0.3412+1.1615i\\[1 em]x_3 &= 0.3412-1.1615i \end{aligned} $$Explanation
Polynomial $ x^3+x+1 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.
This page was created using
Polynomial Roots Calculator