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x in (-oo:+oo)
((x-3)^2)/3 = 16 // - 16
((x-3)^2)/3-16 = 0
((x-3)^2)/3+(-16*3)/3 = 0
(x-3)^2-16*3 = 0
x^2-6*x-39 = 0
x^2-6*x-39 = 0
x^2-6*x-39 = 0
DELTA = (-6)^2-(-39*1*4)
DELTA = 192
DELTA > 0
x = (192^(1/2)+6)/(1*2) or x = (6-192^(1/2))/(1*2)
x = (8*3^(1/2)+6)/2 or x = (6-8*3^(1/2))/2
(x-((6-8*3^(1/2))/2))*(x-((8*3^(1/2)+6)/2)) = 0
((x-((6-8*3^(1/2))/2))*(x-((8*3^(1/2)+6)/2)))/3 = 0
((x-((6-8*3^(1/2))/2))*(x-((8*3^(1/2)+6)/2)))/3 = 0 // * 3
(x-((6-8*3^(1/2))/2))*(x-((8*3^(1/2)+6)/2)) = 0
( x-((6-8*3^(1/2))/2) )
x-((6-8*3^(1/2))/2) = 0 // + (6-8*3^(1/2))/2
x = (6-8*3^(1/2))/2
( x-((8*3^(1/2)+6)/2) )
x-((8*3^(1/2)+6)/2) = 0 // + (8*3^(1/2)+6)/2
x = (8*3^(1/2)+6)/2
x in { (6-8*3^(1/2))/2, (8*3^(1/2)+6)/2 }
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