x-2/x+3*4x+12/6

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Solution for x-2/x+3*4x+12/6 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

x+3*4*x-(2/x)+12/6 = 0

x+3*4*x-2*x^-1+12/6 = 0

13*x^1-2*x^-1+2*x^0 = 0

(13*x^2+2*x^1-2*x^0)/(x^1) = 0 // * x^2

x^1*(13*x^2+2*x^1-2*x^0) = 0

x^1

13*x^2+2*x-2 = 0

13*x^2+2*x-2 = 0

DELTA = 2^2-(-2*4*13)

DELTA = 108

DELTA > 0

x = (108^(1/2)-2)/(2*13) or x = (-108^(1/2)-2)/(2*13)

x = (6*3^(1/2)-2)/26 or x = (-6*3^(1/2)-2)/26

x in { (-6*3^(1/2)-2)/26, (6*3^(1/2)-2)/26} 

x in { (-6*3^(1/2)-2)/26, (6*3^(1/2)-2)/26 }

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