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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
m-m^2-((3/2)*m)-(((1*(16/m))/3)*m)+12 = 0
m-m^2+(-3/2)*m-16/3+12 = 0
20/3-m^2-1/2*m = 0
DELTA = (-1/2)^2-(-1*4*20/3)
DELTA = 323/12
DELTA > 0
m = ((323/12)^(1/2)+1/2)/(-1*2) or m = (1/2-(323/12)^(1/2))/(-1*2)
m = ((323/12)^(1/2)+1/2)/(-2) or m = (1/2-(323/12)^(1/2))/(-2)
m in { ((323/12)^(1/2)+1/2)/(-2), (1/2-(323/12)^(1/2))/(-2) }
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