Simplify: xx−2−2x+2−8x2−4\frac{x}{x-2} - \frac{2}{x+2} - \frac{8}{x^2-4}x−2x−x+22−x2−48 (assume x≠±2x \neq \pm 2x=±2).
x2−4x+4x2−4\frac{x^2-4x+4}{x^2-4}x2−4x2−4x+4
x−2x+2\frac{x-2}{x+2}x+2x−2
x2+2x2−4\frac{x^2+2}{x^2-4}x2−4x2+2
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