(x/2)+(12/x)=5

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Solution for (x/2)+(12/x)=5 equation: 


D( x )

x = 0

x = 0

x = 0

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

x/2+12/x = 5 // - 5

x/2+12/x-5 = 0

1/2*x^1+12*x^-1-5*x^0 = 0

(1/2*x^2-5*x^1+12*x^0)/(x^1) = 0 // * x^2

x^1*(1/2*x^2-5*x^1+12*x^0) = 0

x^1

(1/2)*x^2-5*x+12 = 0

(1/2)*x^2-5*x+12 = 0

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

DELTA = 1

DELTA > 0

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

x = 6 or x = 4

x in { 4, 6} 

x in { 4, 6 }

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