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D( x )
x-1 = 0
x-1 = 0
x-1 = 0
x-1 = 0 // + 1
x = 1
x in (-oo:1) U (1:+oo)
(x^5+5*x^3-(6*x))/(x-1) = 0
(x^5+5*x^3-6*x)/(x-1) = 0
x^5+5*x^3-6*x = 0
x*(x^4+5*x^2-6) = 0
x^4+5*x^2-6 = 0
{ 1, -1, 2, -2, 3, -3, 6, -6 }
1
x = 1
x^4+5*x^2-6 = 0
1
x-1
x^3+x^2+6*x+6
x^4+5*x^2-6
x-1
x^3-x^4
x^3+5*x^2-6
x^2-x^3
6*x^2-6
6*x-6*x^2
6*x-6
6-6*x
0
x^3+x^2+6*x+6 = 0
{ 1, -1, 2, -2, 3, -3, 6, -6 }
1
x = 1
x^3+x^2+6*x+6 = 14
1
-1
x = -1
x^3+x^2+6*x+6 = 0
-1
x+1
x^2+6
x^3+x^2+6*x+6
x+1
-x^3-x^2
6*x+6
-6*x-6
0
x^2+6 = 0
DELTA = 0^2-(1*4*6)
DELTA = -24
DELTA < 0
x in { 1, -1}
x*(x-1)*(x+1) = 0
x*(x+1) = 0
( x+1 )
x+1 = 0 // - 1
x = -1
( x )
x = 0
x in { -1, 0 }
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