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x in (-oo:+oo)
((5*x-4)^2)/3 = 16 // - 16
((5*x-4)^2)/3-16 = 0
((5*x-4)^2)/3+(-16*3)/3 = 0
(5*x-4)^2-16*3 = 0
25*x^2-40*x-32 = 0
25*x^2-40*x-32 = 0
25*x^2-40*x-32 = 0
DELTA = (-40)^2-(-32*4*25)
DELTA = 4800
DELTA > 0
x = (4800^(1/2)+40)/(2*25) or x = (40-4800^(1/2))/(2*25)
x = (40*3^(1/2)+40)/50 or x = (40-40*3^(1/2))/50
(x-((40-40*3^(1/2))/50))*(x-((40*3^(1/2)+40)/50)) = 0
((x-((40-40*3^(1/2))/50))*(x-((40*3^(1/2)+40)/50)))/3 = 0
((x-((40-40*3^(1/2))/50))*(x-((40*3^(1/2)+40)/50)))/3 = 0 // * 3
(x-((40-40*3^(1/2))/50))*(x-((40*3^(1/2)+40)/50)) = 0
( x-((40*3^(1/2)+40)/50) )
x-((40*3^(1/2)+40)/50) = 0 // + (40*3^(1/2)+40)/50
x = (40*3^(1/2)+40)/50
( x-((40-40*3^(1/2))/50) )
x-((40-40*3^(1/2))/50) = 0 // + (40-40*3^(1/2))/50
x = (40-40*3^(1/2))/50
x in { (40*3^(1/2)+40)/50, (40-40*3^(1/2))/50 }
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