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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
6/2-((3/3)*x) = 3/x+3/3 // - 3/x+3/3
6/2-((3/3)*x)-(3/x)-(3/3) = 0
6/2-x-3*x^-1-1 = 0
2*x^0-1*x^1-3*x^-1 = 0
(2*x^1-1*x^2-3*x^0)/(x^1) = 0 // * x^2
x^1*(2*x^1-1*x^2-3*x^0) = 0
x^1
2*x-x^2-3 = 0
2*x-x^2-3 = 0
DELTA = 2^2-(-3*(-1)*4)
DELTA = -8
DELTA < 0
x in { }
x belongs to the empty set
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