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x in (-oo:+oo)
((x-1)^2)/3 = 4 // - 4
((x-1)^2)/3-4 = 0
((x-1)^2)/3+(-4*3)/3 = 0
(x-1)^2-4*3 = 0
x^2-2*x-11 = 0
x^2-2*x-11 = 0
x^2-2*x-11 = 0
DELTA = (-2)^2-(-11*1*4)
DELTA = 48
DELTA > 0
x = (48^(1/2)+2)/(1*2) or x = (2-48^(1/2))/(1*2)
x = (4*3^(1/2)+2)/2 or x = (2-4*3^(1/2))/2
(x-((2-4*3^(1/2))/2))*(x-((4*3^(1/2)+2)/2)) = 0
((x-((2-4*3^(1/2))/2))*(x-((4*3^(1/2)+2)/2)))/3 = 0
((x-((2-4*3^(1/2))/2))*(x-((4*3^(1/2)+2)/2)))/3 = 0 // * 3
(x-((2-4*3^(1/2))/2))*(x-((4*3^(1/2)+2)/2)) = 0
( x-((2-4*3^(1/2))/2) )
x-((2-4*3^(1/2))/2) = 0 // + (2-4*3^(1/2))/2
x = (2-4*3^(1/2))/2
( x-((4*3^(1/2)+2)/2) )
x-((4*3^(1/2)+2)/2) = 0 // + (4*3^(1/2)+2)/2
x = (4*3^(1/2)+2)/2
x in { (2-4*3^(1/2))/2, (4*3^(1/2)+2)/2 }
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