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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x+3/x = 1/4-x // - 1/4-x
x+2/x+3/x-(1/4) = 0
x+2/x+3/x-1/4 = 0
1*x^1+5*x^-1-1/4*x^0 = 0
(1*x^2-1/4*x^1+5*x^0)/(x^1) = 0 // * x^2
x^1*(1*x^2-1/4*x^1+5*x^0) = 0
x^1
x^2+(-1/4)*x+5 = 0
x^2+(-1/4)*x+5 = 0
DELTA = (-1/4)^2-(1*4*5)
DELTA = -319/16
DELTA < 0
x in { }
x belongs to the empty set
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