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x2 - 4x + 1 = 0

p=4

q=1

x = -p/2 +- sqrt((p/2)2 - q)

x = -4/2 +- sqrt((4/2)2 - 1)

x = -2 +- sqrt(4-1)

x1= -2 + sqrt(3)

x2= -2 - sqrt(3)

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14y ago
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Q: What is X2-4x plus 1 equals 0 by completing the square?
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