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D( X )
X = 0
X = 0
X = 0
X in (-oo:0) U (0:+oo)
(3/2)*X-3 = 2/X-5 // - 2/X-5
(3/2)*X-(2/X)-3+5 = 0
(3/2)*X-2*X^-1-3+5 = 0
3/2*X^1-2*X^-1+2*X^0 = 0
(3/2*X^2+2*X^1-2*X^0)/(X^1) = 0 // * X^2
X^1*(3/2*X^2+2*X^1-2*X^0) = 0
X^1
(3/2)*X^2+2*X-2 = 0
(3/2)*X^2+2*X-2 = 0
DELTA = 2^2-(-2*4*(3/2))
DELTA = 16
DELTA > 0
X = (16^(1/2)-2)/(2*(3/2)) or X = (-16^(1/2)-2)/(2*(3/2))
X = 2/3 or X = -2
X in { -2, 2/3}
X in { -2, 2/3 }
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