1/x+6+4/2x+12

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Solution for 1/x+6+4/2x+12 equation: 


D( x )

x = 0

x = 0

x = 0

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

(4/2)*x+1/x+6+12 = 0

2*x^1+1*x^-1+18*x^0 = 0

(2*x^2+18*x^1+1*x^0)/(x^1) = 0 // * x^2

x^1*(2*x^2+18*x^1+1*x^0) = 0

x^1

2*x^2+18*x+1 = 0

2*x^2+18*x+1 = 0

DELTA = 18^2-(1*2*4)

DELTA = 316

DELTA > 0

x = (316^(1/2)-18)/(2*2) or x = (-316^(1/2)-18)/(2*2)

x = (2*79^(1/2)-18)/4 or x = (-2*79^(1/2)-18)/4

x in { (-2*79^(1/2)-18)/4, (2*79^(1/2)-18)/4} 

x in { (-2*79^(1/2)-18)/4, (2*79^(1/2)-18)/4 }

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