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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3/x = 3*x-(3/2) // - 3*x-(3/2)
3/x-(3*x)+3/2 = 0
3/x-3*x+3/2 = 0
3*x^-1-3*x^1+3/2*x^0 = 0
(3/2*x^1-3*x^2+3*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^1-3*x^2+3*x^0) = 0
x^1
(3/2)*x-3*x^2+3 = 0
(3/2)*x-3*x^2+3 = 0
DELTA = (3/2)^2-(-3*3*4)
DELTA = 153/4
DELTA > 0
x = ((153/4)^(1/2)-(3/2))/(-3*2) or x = (-(3/2)-(153/4)^(1/2))/(-3*2)
x = ((153/4)^(1/2)-3/2)/(-6) or x = ((153/4)^(1/2)+3/2)/6
x in { ((153/4)^(1/2)-3/2)/(-6), ((153/4)^(1/2)+3/2)/6}
x in { ((153/4)^(1/2)-3/2)/(-6), ((153/4)^(1/2)+3/2)/6 }
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