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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3/x-3 = (5/2)*x-2 // - (5/2)*x-2
3/x-((5/2)*x)-3+2 = 0
(-5/2)*x+3/x-3+2 = 0
3*x^-1-5/2*x^1-1*x^0 = 0
(3*x^0-5/2*x^2-1*x^1)/(x^1) = 0 // * x^2
x^1*(3*x^0-5/2*x^2-1*x^1) = 0
x^1
(-5/2)*x^2-x+3 = 0
(-5/2)*x^2-x+3 = 0
DELTA = (-1)^2-(3*4*(-5/2))
DELTA = 31
DELTA > 0
x = (31^(1/2)+1)/(2*(-5/2)) or x = (1-31^(1/2))/(2*(-5/2))
x = (31^(1/2)+1)/(-5) or x = (1-31^(1/2))/(-5)
x in { (31^(1/2)+1)/(-5), (1-31^(1/2))/(-5)}
x in { (31^(1/2)+1)/(-5), (1-31^(1/2))/(-5) }
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