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D( x )
3*x^2+2*x-1 = 0
3*x^2+2*x-1 = 0
3*x^2+2*x-1 = 0
3*x^2+2*x-1 = 0
DELTA = 2^2-(-1*3*4)
DELTA = 16
DELTA > 0
x = (16^(1/2)-2)/(2*3) or x = (-16^(1/2)-2)/(2*3)
x = 1/3 or x = -1
x in (-oo:-1) U (-1:1/3) U (1/3:+oo)
(3*x^2-(7*x)+2)/(3*x^2+2*x-1) = 0
(3*x^2-7*x+2)/(3*x^2+2*x-1) = 0
3*x^2-7*x+2 = 0
3*x^2-7*x+2 = 0
DELTA = (-7)^2-(2*3*4)
DELTA = 25
DELTA > 0
x = (25^(1/2)+7)/(2*3) or x = (7-25^(1/2))/(2*3)
x = 2 or x = 1/3
(x-1/3)*(x-2) = 0
3*x^2+2*x-1 = 0
3*x^2+2*x-1 = 0
DELTA = 2^2-(-1*3*4)
DELTA = 16
DELTA > 0
x = (16^(1/2)-2)/(2*3) or x = (-16^(1/2)-2)/(2*3)
x = 1/3 or x = -1
(x+1)*(x-1/3) = 0
((x-1/3)*(x-2))/((x+1)*(x-1/3)) = 0
( x-1/3 )
x-1/3 = 0 // + 1/3
x = 1/3
( x-2 )
x-2 = 0 // + 2
x = 2
x in { 1/3}
x = 2
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