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x in (-oo:+oo)
((2*x-5)^2)/3 = 16 // - 16
((2*x-5)^2)/3-16 = 0
((2*x-5)^2)/3+(-16*3)/3 = 0
(2*x-5)^2-16*3 = 0
4*x^2-20*x-23 = 0
4*x^2-20*x-23 = 0
4*x^2-20*x-23 = 0
DELTA = (-20)^2-(-23*4*4)
DELTA = 768
DELTA > 0
x = (768^(1/2)+20)/(2*4) or x = (20-768^(1/2))/(2*4)
x = (16*3^(1/2)+20)/8 or x = (20-16*3^(1/2))/8
(x-((20-16*3^(1/2))/8))*(x-((16*3^(1/2)+20)/8)) = 0
((x-((20-16*3^(1/2))/8))*(x-((16*3^(1/2)+20)/8)))/3 = 0
((x-((20-16*3^(1/2))/8))*(x-((16*3^(1/2)+20)/8)))/3 = 0 // * 3
(x-((20-16*3^(1/2))/8))*(x-((16*3^(1/2)+20)/8)) = 0
( x-((16*3^(1/2)+20)/8) )
x-((16*3^(1/2)+20)/8) = 0 // + (16*3^(1/2)+20)/8
x = (16*3^(1/2)+20)/8
( x-((20-16*3^(1/2))/8) )
x-((20-16*3^(1/2))/8) = 0 // + (20-16*3^(1/2))/8
x = (20-16*3^(1/2))/8
x in { (16*3^(1/2)+20)/8, (20-16*3^(1/2))/8 }
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