$$( x ) ^ { - 3 } = \frac { 1 } { 729 } 6269 \times 82$$
$x=\frac{9\times 514058^{\frac{2}{3}}e^{\frac{2\pi i}{3}}}{514058}\approx -0.056174835+0.097297669i$
$x=\frac{9\times 514058^{\frac{2}{3}}}{514058}\approx 0.11234967$
$x=\frac{9\times 514058^{\frac{2}{3}}e^{\frac{4\pi i}{3}}}{514058}\approx -0.056174835-0.097297669i$
$x=\frac{9\times 514058^{\frac{2}{3}}}{514058}\approx 0.11234967$
