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D( m )
m-2 = 0
m^2-(6*m)+8 = 0
m-4 = 0
m-2 = 0
m-2 = 0
m-2 = 0 // + 2
m = 2
m^2-(6*m)+8 = 0
m^2-(6*m)+8 = 0
m^2-6*m+8 = 0
m^2-6*m+8 = 0
DELTA = (-6)^2-(1*4*8)
DELTA = 4
DELTA > 0
m = (4^(1/2)+6)/(1*2) or m = (6-4^(1/2))/(1*2)
m = 4 or m = 2
m-4 = 0
m-4 = 0
m-4 = 0 // + 4
m = 4
m in (-oo:2) U (2:4) U (4:+oo)
m/(m-2)-((3*m)/(m-4)) = (2-2*m)/(m^2-(6*m)+8) // - (2-2*m)/(m^2-(6*m)+8)
m/(m-2)-((3*m)/(m-4))-((2-2*m)/(m^2-(6*m)+8)) = 0
m/(m-2)-3*m*(m-4)^-1-((2-2*m)/(m^2-6*m+8)) = 0
m/(m-2)+(-3*m)/(m-4)+(-1*(2-2*m))/(m^2-6*m+8) = 0
m^2-6*m+8 = 0
m^2-6*m+8 = 0
m^2-6*m+8 = 0
DELTA = (-6)^2-(1*4*8)
DELTA = 4
DELTA > 0
m = (4^(1/2)+6)/(1*2) or m = (6-4^(1/2))/(1*2)
m = 4 or m = 2
(m-2)*(m-4) = 0
m/(m-2)+(-3*m)/(m-4)+(-1*(2-2*m))/((m-2)*(m-4)) = 0
(m*(m-4))/((m-2)*(m-4))+(-3*m*(m-2))/((m-2)*(m-4))+(-1*(2-2*m))/((m-2)*(m-4)) = 0
m*(m-4)-3*m*(m-2)-1*(2-2*m) = 0
2*m-2*m^2+2*m-2 = 0
4*m-2*m^2-2 = 0
4*m-2*m^2-2 = 0
2*(2*m-m^2-1) = 0
2*m-m^2-1 = 0
DELTA = 2^2-(-1*(-1)*4)
DELTA = 0
m = -2/(-1*2)
m = 1 or m = 1
2*(m-1)^2 = 0
(2*(m-1)^2)/((m-2)*(m-4)) = 0
(2*(m-1)^2)/((m-2)*(m-4)) = 0 // * (m-2)*(m-4)
2*(m-1)^2 = 0
m-1 = 0 // + 1
m = 1
m in { 1, 1 }
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