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D( x )
3*x^2+x-4 = 0
3*x^2+x-4 = 0
3*x^2+x-4 = 0
3*x^2+x-4 = 0
DELTA = 1^2-(-4*3*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-1)/(2*3) or x = (-49^(1/2)-1)/(2*3)
x = 1 or x = -4/3
x in (-oo:-4/3) U (-4/3:1) U (1:+oo)
(23*x-6*x^2-1)/(3*x^2+x-4) = 0
23*x-6*x^2-1 = 0
23*x-6*x^2-1 = 0
DELTA = 23^2-(-6*(-1)*4)
DELTA = 505
DELTA > 0
x = (505^(1/2)-23)/(-6*2) or x = (-505^(1/2)-23)/(-6*2)
x = (505^(1/2)-23)/(-12) or x = (505^(1/2)+23)/12
(x-((505^(1/2)-23)/(-12)))*(x-((505^(1/2)+23)/12)) = 0
3*x^2+x-4 = 0
3*x^2+x-4 = 0
DELTA = 1^2-(-4*3*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-1)/(2*3) or x = (-49^(1/2)-1)/(2*3)
x = 1 or x = -4/3
(x+4/3)*(x-1) = 0
((x-((505^(1/2)-23)/(-12)))*(x-((505^(1/2)+23)/12)))/((x+4/3)*(x-1)) = 0
( x-((505^(1/2)+23)/12) )
x-((505^(1/2)+23)/12) = 0 // + (505^(1/2)+23)/12
x = (505^(1/2)+23)/12
( x-((505^(1/2)-23)/(-12)) )
x-((505^(1/2)-23)/(-12)) = 0 // + (505^(1/2)-23)/(-12)
x = (505^(1/2)-23)/(-12)
x in { (505^(1/2)+23)/12, (505^(1/2)-23)/(-12) }
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