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x in (-oo:+oo)
((2*x-1)^2)/3 = 4 // - 4
((2*x-1)^2)/3-4 = 0
((2*x-1)^2)/3+(-4*3)/3 = 0
(2*x-1)^2-4*3 = 0
4*x^2-4*x-11 = 0
4*x^2-4*x-11 = 0
4*x^2-4*x-11 = 0
DELTA = (-4)^2-(-11*4*4)
DELTA = 192
DELTA > 0
x = (192^(1/2)+4)/(2*4) or x = (4-192^(1/2))/(2*4)
x = (8*3^(1/2)+4)/8 or x = (4-8*3^(1/2))/8
(x-((4-8*3^(1/2))/8))*(x-((8*3^(1/2)+4)/8)) = 0
((x-((4-8*3^(1/2))/8))*(x-((8*3^(1/2)+4)/8)))/3 = 0
((x-((4-8*3^(1/2))/8))*(x-((8*3^(1/2)+4)/8)))/3 = 0 // * 3
(x-((4-8*3^(1/2))/8))*(x-((8*3^(1/2)+4)/8)) = 0
( x-((4-8*3^(1/2))/8) )
x-((4-8*3^(1/2))/8) = 0 // + (4-8*3^(1/2))/8
x = (4-8*3^(1/2))/8
( x-((8*3^(1/2)+4)/8) )
x-((8*3^(1/2)+4)/8) = 0 // + (8*3^(1/2)+4)/8
x = (8*3^(1/2)+4)/8
x in { (4-8*3^(1/2))/8, (8*3^(1/2)+4)/8 }
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