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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3/x = (3/2)*x+3 // - (3/2)*x+3
3/x-((3/2)*x)-3 = 0
(-3/2)*x+3/x-3 = 0
3*x^-1-3/2*x^1-3*x^0 = 0
(3*x^0-3/2*x^2-3*x^1)/(x^1) = 0 // * x^2
x^1*(3*x^0-3/2*x^2-3*x^1) = 0
x^1
(-3/2)*x^2-3*x+3 = 0
(-3/2)*x^2-3*x+3 = 0
DELTA = (-3)^2-(3*4*(-3/2))
DELTA = 27
DELTA > 0
x = (27^(1/2)+3)/(2*(-3/2)) or x = (3-27^(1/2))/(2*(-3/2))
x = (3*3^(1/2)+3)/(-3) or x = (3-3*3^(1/2))/(-3)
x in { (3*3^(1/2)+3)/(-3), (3-3*3^(1/2))/(-3)}
x in { (3*3^(1/2)+3)/(-3), (3-3*3^(1/2))/(-3) }
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