Simplify: 2x2−2x2−2x+1\dfrac{2x^2 - 2}{x^2 - 2x + 1}x2−2x+12x2−2 (assume x≠1x \neq 1x=1).
2(x+1)x−1\dfrac{2(x+1)}{x - 1}x−12(x+1)
2(x−1)x+1\dfrac{2(x-1)}{x+1}x+12(x−1)
2(x+1)2(x + 1)2(x+1)
2x−1\dfrac{2}{x-1}x−12