x^2-4x=12/5

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Solution for x^2-4x=12/5 equation: 


x in (-oo:+oo)

x^2-(4*x) = 12/5 // - 12/5

x^2-(4*x)-(12/5) = 0

x^2-4*x-12/5 = 0

x^2-4*x-12/5 = 0

DELTA = (-4)^2-(-12/5*1*4)

DELTA = 128/5

DELTA > 0

x = ((128/5)^(1/2)+4)/(1*2) or x = (4-(128/5)^(1/2))/(1*2)

x = ((128/5)^(1/2)+4)/2 or x = (4-(128/5)^(1/2))/2

x in { (4-(128/5)^(1/2))/2, ((128/5)^(1/2)+4)/2 }

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