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D( x )
3*x-1 = 0
3*x-1 = 0
3*x-1 = 0
3*x-1 = 0 // + 1
3*x = 1 // : 3
x = 1/3
x in (-oo:1/3) U (1/3:+oo)
(6*x^2-(3*x)-17)/(3*x-1) = 0
(6*x^2-3*x-17)/(3*x-1) = 0
6*x^2-3*x-17 = 0
6*x^2-3*x-17 = 0
DELTA = (-3)^2-(-17*4*6)
DELTA = 417
DELTA > 0
x = (417^(1/2)+3)/(2*6) or x = (3-417^(1/2))/(2*6)
x = (417^(1/2)+3)/12 or x = (3-417^(1/2))/12
(x-((3-417^(1/2))/12))*(x-((417^(1/2)+3)/12)) = 0
((x-((3-417^(1/2))/12))*(x-((417^(1/2)+3)/12)))/(3*x-1) = 0
( x-((3-417^(1/2))/12) )
x-((3-417^(1/2))/12) = 0 // + (3-417^(1/2))/12
x = (3-417^(1/2))/12
( x-((417^(1/2)+3)/12) )
x-((417^(1/2)+3)/12) = 0 // + (417^(1/2)+3)/12
x = (417^(1/2)+3)/12
x in { (3-417^(1/2))/12, (417^(1/2)+3)/12 }
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