Question

2/x = x/8 "/" - supra

Answer 1

$\displaystyle \frac{2}{x} = \frac{x}{8} \\ 8 \cdot 2=x \cdot x \\ 16=x^2 \\ x^2=16 \\ x= \sqrt{16} \\ x=4 \\ x=- \sqrt{16} \\ x=-4$