Question

$x {}^{2} \times 2x - 8 = 0$

Answer 1

${x}^{2} \times 2x - 8 = 0$

$2 {x}^{3} - 8 = 0 \\ 2 {x}^{3} = 8 \\x \sqrt{2} = 2 \\ x = \sqrt{2}$