SOLUTION: solve by completing the square: x^2-22x-4=0

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Question 540649: solve by completing the square:
x^2-22x-4=0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-22x-4
x^2-22x+121-4 =121
x^2-22x+121=121+4
(x-11)^2=125
(x-11)^2=25*(5)
Take the square root on both sides
x-11= +/- 5sqrt(5)
x=11+5sqrt(5)
OR
x=11-5sqrt(5)