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D( x )
x = 0
3*x-2 = 0
x = 0
x = 0
3*x-2 = 0
3*x-2 = 0
3*x-2 = 0 // + 2
3*x = 2 // : 3
x = 2/3
x in (-oo:0) U (0:2/3) U (2/3:+oo)
(x-(2*m))/(3*x-2) = 2/x // - 2/x
(x-(2*m))/(3*x-2)-(2/x) = 0
(x-2*m)/(3*x-2)-2*x^-1 = 0
(x-2*m)/(3*x-2)-2/x = 0
(x*(x-2*m))/(x*(3*x-2))+(-2*(3*x-2))/(x*(3*x-2)) = 0
x*(x-2*m)-2*(3*x-2) = 0
x^2-2*m*x-6*x+4 = 0
x^2-2*m*x-6*x+4 = 0
x^2-6*x+4 = 0
DELTA = (-6)^2-(1*4*4)
DELTA = 20
DELTA > 0
x = (20^(1/2)+6)/(1*2) or x = (6-20^(1/2))/(1*2)
x = (2*5^(1/2)+6)/2 or x = (6-2*5^(1/2))/2
(x-((6-2*5^(1/2))/2))*(x-((2*5^(1/2)+6)/2)) = 0
((x-((6-2*5^(1/2))/2))*(x-((2*5^(1/2)+6)/2)))/(x*(3*x-2)) = 0
((x-((6-2*5^(1/2))/2))*(x-((2*5^(1/2)+6)/2)))/(x*(3*x-2)) = 0 // * x*(3*x-2)
(x-((6-2*5^(1/2))/2))*(x-((2*5^(1/2)+6)/2)) = 0
( x-((2*5^(1/2)+6)/2) )
x-((2*5^(1/2)+6)/2) = 0 // + (2*5^(1/2)+6)/2
x = (2*5^(1/2)+6)/2
( x-((6-2*5^(1/2))/2) )
x-((6-2*5^(1/2))/2) = 0 // + (6-2*5^(1/2))/2
x = (6-2*5^(1/2))/2
x in { (2*5^(1/2)+6)/2, (6-2*5^(1/2))/2 }
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