What is X 2-6x-2 0 completing the square?

x^2 - 6x - 2 = 0

x^2 - 6x = 2

x^2 - 6x + 9 = 2 + 9 = 11

(x - 3)^2 = 11

x - 3 = +/- sqrt(11)

x = 3 +/- sqrt(11)