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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(3/2)*x-(1/x)+5 = 1 // - 1
(3/2)*x-(1/x)-1+5 = 0
(3/2)*x-x^-1-1+5 = 0
3/2*x^1-1*x^-1+4*x^0 = 0
(3/2*x^2+4*x^1-1*x^0)/(x^1) = 0 // * x^2
x^1*(3/2*x^2+4*x^1-1*x^0) = 0
x^1
(3/2)*x^2+4*x-1 = 0
(3/2)*x^2+4*x-1 = 0
DELTA = 4^2-(-1*4*(3/2))
DELTA = 22
DELTA > 0
x = (22^(1/2)-4)/(2*(3/2)) or x = (-22^(1/2)-4)/(2*(3/2))
x = (22^(1/2)-4)/3 or x = (-(22^(1/2)+4))/3
x in { (-(22^(1/2)+4))/3, (22^(1/2)-4)/3}
x in { (-(22^(1/2)+4))/3, (22^(1/2)-4)/3 }
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