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