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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
(3*m)/m-m-(3/m)-2+4 = 0
(3*m)/m-m-3*m^-1-2+4 = 0
5*m^0-1*m^1-3*m^-1 = 0
(5*m^1-1*m^2-3*m^0)/(m^1) = 0 // * m^2
m^1*(5*m^1-1*m^2-3*m^0) = 0
m^1
5*m-m^2-3 = 0
5*m-m^2-3 = 0
DELTA = 5^2-(-3*(-1)*4)
DELTA = 13
DELTA > 0
m = (13^(1/2)-5)/(-1*2) or m = (-13^(1/2)-5)/(-1*2)
m = (13^(1/2)-5)/(-2) or m = (13^(1/2)+5)/2
m in { (13^(1/2)-5)/(-2), (13^(1/2)+5)/2}
m in { (13^(1/2)-5)/(-2), (13^(1/2)+5)/2 }
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