solve the quadratic x2-22x=11 using completing the square

Answer 1

x^2 - 22 x = 11

(22/2)^2 = 121

x^2 - 22 x + 121 = 132

(x-11)^2 = 132

x = 11 +/- sqrt(132)

x = 11 +/- 2 sqrt(33)