SOLUTION: Solve X^2-4X+1=0 for X

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Question 1198392: Solve X^2-4X+1=0 for X
Answer by Alan3354(69443) About Me  (Show Source):
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Solve X^2-4X+1=0 for X
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Using completion of the square and lower case x:
X^2-4X+1=0
x^2 - 4x = -1
Add 4
x^2 - 4x + 4 = 3
(x-2)^2 = 3
x-2+=+sqrt%283%29
x+=+2+%2B+sqrt%283%29
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x-2+=+-sqrt%283%29
x+=+2+-+sqrt%283%29