x^2-4/2x-6

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Solution for x^2-4/2x-6 equation: 


x in (-oo:+oo)

x^2-((4/2)*x)-6 = 0

x^2-2*x-6 = 0

x^2-2*x-6 = 0

DELTA = (-2)^2-(-6*1*4)

DELTA = 28

DELTA > 0

x = (28^(1/2)+2)/(1*2) or x = (2-28^(1/2))/(1*2)

x = (2*7^(1/2)+2)/2 or x = (2-2*7^(1/2))/2

x in { (2-2*7^(1/2))/2, (2*7^(1/2)+2)/2 }

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