12/x-12/3x

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Solution for 12/x-12/3x equation: 


D( x )

x = 0

x = 0

x = 0

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

12/x-((12/3)*x) = 0

12/x-4*x = 0

12*x^-1-4*x^1 = 0

(12*x^0-4*x^2)/(x^1) = 0 // * x^2

x^1*(12*x^0-4*x^2) = 0

x^1

12-4*x^2 = 0

12-4*x^2 = 0

DELTA = 0^2-(-4*4*12)

DELTA = 192

DELTA > 0

x = (192^(1/2)+0)/(-4*2) or x = (0-192^(1/2))/(-4*2)

x = -3^(1/2) or x = 3^(1/2)

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

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

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