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D( m )
m^2-4 = 0
m = 0
m+2 = 0
m^2-4 = 0
m^2-4 = 0
1*m^2 = 4 // : 1
m^2 = 4
m^2 = 4 // ^ 1/2
abs(m) = 2
m = 2 or m = -2
m = 0
m = 0
m+2 = 0
m+2 = 0
m+2 = 0 // - 2
m = -2
m in (-oo:-2) U (-2:0) U (0:2) U (2:+oo)
3/(m+2)+2/m = (4*m-4)/(m^2-4) // - (4*m-4)/(m^2-4)
3/(m+2)-((4*m-4)/(m^2-4))+2/m = 0
3/(m+2)+(-1*(4*m-4))/(m^2-4)+2/m = 0
(3*m*(m^2-4))/(m*(m+2)*(m^2-4))+(-1*m*(4*m-4)*(m+2))/(m*(m+2)*(m^2-4))+(2*(m+2)*(m^2-4))/(m*(m+2)*(m^2-4)) = 0
3*m*(m^2-4)-1*m*(4*m-4)*(m+2)+2*(m+2)*(m^2-4) = 0
2*m^3-m^3-4*m^2+4*m^2-4*m-8*m-16 = 0
m^3-12*m-16 = 0
m^3-12*m-16 = 0
m^3-12*m-16 = 0
{ 1, -1, 2, -2, 4, -4, 8, -8, 16, -16 }
1
m = 1
m^3-12*m-16 = -27
1
-1
m = -1
m^3-12*m-16 = -5
-1
2
m = 2
m^3-12*m-16 = -32
2
-2
m = -2
m^3-12*m-16 = 0
-2
m+2
m^2-2*m-8
m^3-12*m-16
m+2
-m^3-2*m^2
-2*m^2-12*m-16
2*m^2+4*m
-8*m-16
8*m+16
0
m^2-2*m-8 = 0
DELTA = (-2)^2-(-8*1*4)
DELTA = 36
DELTA > 0
m = (36^(1/2)+2)/(1*2) or m = (2-36^(1/2))/(1*2)
m = 4 or m = -2
m in { -2, 4, -2}
(m+2)^2*(m-4) = 0
((m+2)^2*(m-4))/(m*(m+2)*(m^2-4)) = 0
((m+2)^2*(m-4))/(m*(m+2)*(m^2-4)) = 0 // * m*(m+2)*(m^2-4)
(m+2)^2*(m-4) = 0
( m+2 )
m+2 = 0 // - 2
m = -2
( m-4 )
m-4 = 0 // + 4
m = 4
m in { -2}
m = 4
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