SOLUTION: Solve the equation by completing the square n^2-16n-76=-4

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Question 1090213: Solve the equation by completing the square
n^2-16n-76=-4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Take half of the x coefficient, square it, add to both sides.
n%5E2-16n=72
n%5E2-16n%2B%2816%2F2%29%5E2=72%2B%2816%2F2%29%5E2
n%5E2-16n%2B64=138
%28n-8%29%5E2=138
n-8=0+%2B-+sqrt%28138%29
highlight%28n=8+%2B-+sqrt%28138%29%29