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D( X )
X = 0
X = 0
X = 0
X in (-oo:0) U (0:+oo)
X+32/X = 0
1*X^1+32*X^-1 = 0
(1*X^2+32*X^0)/(X^1) = 0 // * X^2
X^1*(1*X^2+32*X^0) = 0
X^1
X^2+32 = 0
X^2+32 = 0
DELTA = 0^2-(1*4*32)
DELTA = -128
DELTA < 0
X in { }
X belongs to the empty set
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