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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
x+38/9 = 5*x+2/x // - 5*x+2/x
x-(5*x)-(2/x)+38/9 = 0
x-5*x-2*x^-1+38/9 = 0
38/9*x^0-4*x^1-2*x^-1 = 0
(38/9*x^1-4*x^2-2*x^0)/(x^1) = 0 // * x^2
x^1*(38/9*x^1-4*x^2-2*x^0) = 0
x^1
(38/9)*x-4*x^2-2 = 0
(38/9)*x-4*x^2-2 = 0
DELTA = (38/9)^2-(-4*(-2)*4)
DELTA = -1148/81
DELTA < 0
x in { }
x belongs to the empty set
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