Simplify the complex fraction x2−2x12+1x\frac{\frac{x}{2} - \frac{2}{x}}{\frac{1}{2} + \frac{1}{x}}21+x12x−x2.
x−2x-2x−2
x+2x+2x+2
x−22\frac{x-2}{2}2x−2
2−x2-x2−x