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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(3/2)*x+6/x = 5/2 // - 5/2
(3/2)*x+6/x-(5/2) = 0
(3/2)*x+6/x-5/2 = 0
3/2*x^1+6*x^-1-5/2*x^0 = 0
(3/2*x^2-5/2*x^1+6*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^2-5/2*x^1+6*x^0) = 0
x^1
(3/2)*x^2+(-5/2)*x+6 = 0
(3/2)*x^2+(-5/2)*x+6 = 0
DELTA = (-5/2)^2-(4*6*(3/2))
DELTA = -119/4
DELTA < 0
x in { }
x belongs to the empty set
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