Subtract: x2x2−4−4x2−4\frac{x^2}{x^2 - 4} - \frac{4}{x^2 - 4}x2−4x2−x2−44
111
x2−4x2−4\frac{x^2 - 4}{x^2 - 4}x2−4x2−4
x−2x+2\frac{x-2}{x+2}x+2x−2
x+2x−2\frac{x+2}{x-2}x−2x+2