Question
$$(xx-2)(xx+1)\cdot2 = 0$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} (xx-2)(xx+1)\cdot2 &= 0&& \text{simplify left side} \\[1 em](x^2-2)(x^2+1)\cdot2 &= 0&& \\[1 em](x^4+x^2-2x^2-2)\cdot2 &= 0&& \\[1 em](x^4-x^2-2)\cdot2 &= 0&& \\[1 em]2x^4-2x^2-4 &= 0&& \\[1 em] \end{aligned} $$
This polynomial has no rational roots that can be found using Rational Root Test.
Roots were found using quartic formulas
This page was created using
Equations Solver