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m in (-oo:+oo)
m*((m+6)/2) = 4/2 // - 4/2
m*((m+6)/2)-(4/2) = 0
m*((m+6)/2)-2 = 0
(m*(m+6))/2-2 = 0
(m*(m+6))/2+(-2*2)/2 = 0
m*(m+6)-2*2 = 0
m^2+6*m-4 = 0
m^2+6*m-4 = 0
m^2+6*m-4 = 0
DELTA = 6^2-(-4*1*4)
DELTA = 52
DELTA > 0
m = (52^(1/2)-6)/(1*2) or m = (-52^(1/2)-6)/(1*2)
m = (2*13^(1/2)-6)/2 or m = (-2*13^(1/2)-6)/2
(m-((-2*13^(1/2)-6)/2))*(m-((2*13^(1/2)-6)/2)) = 0
((m-((-2*13^(1/2)-6)/2))*(m-((2*13^(1/2)-6)/2)))/2 = 0
((m-((-2*13^(1/2)-6)/2))*(m-((2*13^(1/2)-6)/2)))/2 = 0 // * 2
(m-((-2*13^(1/2)-6)/2))*(m-((2*13^(1/2)-6)/2)) = 0
( m-((-2*13^(1/2)-6)/2) )
m-((-2*13^(1/2)-6)/2) = 0 // + (-2*13^(1/2)-6)/2
m = (-2*13^(1/2)-6)/2
( m-((2*13^(1/2)-6)/2) )
m-((2*13^(1/2)-6)/2) = 0 // + (2*13^(1/2)-6)/2
m = (2*13^(1/2)-6)/2
m in { (-2*13^(1/2)-6)/2, (2*13^(1/2)-6)/2 }
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