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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(3/2)*x+1/2-2 = 2/x-1 // - 2/x-1
(3/2)*x-(2/x)+1/2-2+1 = 0
(3/2)*x-2*x^-1+1/2-2+1 = 0
3/2*x^1-2*x^-1-1/2*x^0 = 0
(3/2*x^2-1/2*x^1-2*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^2-1/2*x^1-2*x^0) = 0
x^1
(3/2)*x^2+(-1/2)*x-2 = 0
(3/2)*x^2+(-1/2)*x-2 = 0
DELTA = (-1/2)^2-(-2*4*(3/2))
DELTA = 49/4
DELTA > 0
x = ((49/4)^(1/2)-(-1/2))/(2*(3/2)) or x = (-(-1/2)-(49/4)^(1/2))/(2*(3/2))
x = 4/3 or x = -1
x in { -1, 4/3}
x in { -1, 4/3 }
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