Find the derivative of the function y = (x² + 2x - 2)/(x² - 2x + 2)
1) (-4x² + 8x)/(x² - 2x + 2)²
2) (4x² - 8x)/(x² - 2x + 2)²
3) (4x² + 8x)/(x² - 2x + 2)²
4) (-4x² + 8x)/(x² - 2x + 2)²