Question
$$0 = x^3+2x+4$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} 0 &= x^3+2x+4&& \text{move all terms to the left hand side } \\[1 em]0-x^3-2x-4 &= 0&& \text{simplify left side} \\[1 em]-x^3-2x-4 &= 0&& \\[1 em] \end{aligned} $$
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using qubic formulas.
This page was created using
Polynomial Equations Solver