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D( x )
3*x^1 = 0
3*x^1 = 0
3*x^1 = 0
3*x = 0
3*x = 0 // : 3
x = 0
x in (-oo:0) U (0:+oo)
6/(3*x^1)-1+5 = 17 // - 17
6/(3*x^1)-17-1+5 = 0
6/(3*x)-17-1+5 = 0
2*x^-1 = 13 // : 2
x^-1 = 13/2
-1 < 0
1/(x^1) = 13/2 // * x^1
1 = 13/2*x^1 // : 13/2
2/13 = x^1
x = 2/13
x = 2/13
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