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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3*x^2-(24/x) = 0
3*x^2-24*x^-1 = 0
3*x^2-24*x^-1 = 0
(3*x^3-24*x^0)/(x^1) = 0 // * x^2
x^1*(3*x^3-24*x^0) = 0
x^1
3*x^3-24 = 0
{ 1, -1, 2, -2, 3, -3, 4, -4, 6, -6, 8, -8, 12, -12, 24, -24 }
1
x = 1
3*x^3-24 = -21
1
-1
x = -1
3*x^3-24 = -27
-1
2
x = 2
3*x^3-24 = 0
2
x-2
3*x^2+6*x+12
3*x^3-24
x-2
6*x^2-3*x^3
6*x^2-24
12*x-6*x^2
12*x-24
24-12*x
0
3*x^2+6*x+12 = 0
DELTA = 6^2-(3*4*12)
DELTA = -108
DELTA < 0
x in { 2}
x = 2
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