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D( m )
8-1*m = 0
8-1*m = 0
8-1*m = 0
8-m = 0
8-m = 0 // - 8
-m = -8 // * -1
m = 8
m in (-oo:8) U (8:+oo)
(9*m^2-2*m^3+55*m+8)/(8-1*m) = 0
(9*m^2-2*m^3+55*m+8)/(8-m) = 0
9*m^2-2*m^3+55*m+8 = 0
9*m^2-2*m^3+55*m+8 = 0
{ 1, -1, 2, -2, 4, -4, 8, -8 }
1
m = 1
9*m^2-2*m^3+55*m+8 = 70
1
-1
m = -1
9*m^2-2*m^3+55*m+8 = -36
-1
2
m = 2
9*m^2-2*m^3+55*m+8 = 138
2
-2
m = -2
9*m^2-2*m^3+55*m+8 = -50
-2
4
m = 4
9*m^2-2*m^3+55*m+8 = 244
4
-4
m = -4
9*m^2-2*m^3+55*m+8 = 60
-4
8
m = 8
9*m^2-2*m^3+55*m+8 = 0
8
m-8
-2*m^2-7*m-1
9*m^2-2*m^3+55*m+8
m-8
2*m^3-16*m^2
55*m-7*m^2+8
7*m^2-56*m
8-m
m-8
0
-2*m^2-7*m-1 = 0
DELTA = (-7)^2-(-2*(-1)*4)
DELTA = 41
DELTA > 0
m = (41^(1/2)+7)/(-2*2) or m = (7-41^(1/2))/(-2*2)
m = (41^(1/2)+7)/(-4) or m = (7-41^(1/2))/(-4)
m in { (41^(1/2)+7)/(-4), (7-41^(1/2))/(-4), 8}
(m-((41^(1/2)+7)/(-4)))*(m-((7-41^(1/2))/(-4)))*(m-8) = 0
((m-((41^(1/2)+7)/(-4)))*(m-((7-41^(1/2))/(-4)))*(m-8))/(8-m) = 0
( m-((41^(1/2)+7)/(-4)) )
m-((41^(1/2)+7)/(-4)) = 0 // + (41^(1/2)+7)/(-4)
m = (41^(1/2)+7)/(-4)
( m-((7-41^(1/2))/(-4)) )
m-((7-41^(1/2))/(-4)) = 0 // + (7-41^(1/2))/(-4)
m = (7-41^(1/2))/(-4)
( m-8 )
m-8 = 0 // + 8
m = 8
m in { 8}
m in { (41^(1/2)+7)/(-4), (7-41^(1/2))/(-4) }
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