Question
$$2x+8x^4-3x^2+x^6+12 = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} 2x+8x^4-3x^2+x^6+12 &= 0&& \text{simplify left side} \\[1 em]x^6+8x^4-3x^2+2x+12 &= 0&& \\[1 em] \end{aligned} $$
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using Newton method.
This page was created using
Polynomial Equations Solver