2 + 2/(x - 2) - 4/(x^2 - 4) - 1/(2 - x) = 1/(2 - x)
2 + 2/(x - 2) - 4/(x^2 - 4) + 1/(x - 2) = - 1/(x - 2)
2 + 4/(x - 2) - 4/(x^2 - 4) = 0
2·(x + 2)·(x - 2)/((x + 2)·(x - 2)) + 4·(x + 2)/((x + 2)·(x - 2)) - 4/((x + 2)·(x - 2)) = 0
(2·x^2 - 8)/((x + 2)·(x - 2)) + (4·x + 8)/((x + 2)·(x - 2)) - 4/((x + 2)·(x - 2)) = 0
(2·x^2 - 8 + 4·x + 8 - 4)/((x + 2)·(x - 2)) = 0
(2·x^2 + 4·x - 4)/((x + 2)·(x - 2)) = 0
2·(x^2 + 2·x - 2)/((x + 2)·(x - 2)) = 0
x^2 + 2·x - 2 = 0
x = - 1 ± √3
x = 0.7320508075 ∨ x = -2.732050807