SOLUTION: I need help solving x^2+20x=6 I know the formula should be x^2+bx but I need help understanding how to complete the square.

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Question 341595: I need help solving x^2+20x=6
I know the formula should be x^2+bx but I need help understanding how to complete the square.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B20x=6
To complete the square, take 1%2F2 of the x-coefficient(b), square it, and add it to both sides.
%281%2F2%29%2820%29=10
10%5E2=100
x%5E2%2B20x%2B100=6%2B100
%28x%2B10%29%5E2=106
x%2B10=0+%2B-+sqrt%28106%29
highlight%28x=-10+%2B-+sqrt%28106%29%29