Evaluate x+2+x−2x+2−x−2\frac{\sqrt{x+2} + \sqrt{x-2}}{\sqrt{x+2} - \sqrt{x-2}}x+2−x−2x+2+x−2 when x=52x = \frac{5}{2}x=25.
444
1/41/41/4
222
1/21/21/2