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x in (-oo:+oo)
((2*x-4)^2)/3 = 50 // - 50
((2*x-4)^2)/3-50 = 0
((2*x-4)^2)/3+(-50*3)/3 = 0
(2*x-4)^2-50*3 = 0
4*x^2-16*x-134 = 0
4*x^2-16*x-134 = 0
2*(2*x^2-8*x-67) = 0
2*x^2-8*x-67 = 0
DELTA = (-8)^2-(-67*2*4)
DELTA = 600
DELTA > 0
x = (600^(1/2)+8)/(2*2) or x = (8-600^(1/2))/(2*2)
x = (10*6^(1/2)+8)/4 or x = (8-10*6^(1/2))/4
2*(x-((8-10*6^(1/2))/4))*(x-((10*6^(1/2)+8)/4)) = 0
(2*(x-((8-10*6^(1/2))/4))*(x-((10*6^(1/2)+8)/4)))/3 = 0
(2*(x-((8-10*6^(1/2))/4))*(x-((10*6^(1/2)+8)/4)))/3 = 0 // * 3
2*(x-((8-10*6^(1/2))/4))*(x-((10*6^(1/2)+8)/4)) = 0
( x-((10*6^(1/2)+8)/4) )
x-((10*6^(1/2)+8)/4) = 0 // + (10*6^(1/2)+8)/4
x = (10*6^(1/2)+8)/4
( x-((8-10*6^(1/2))/4) )
x-((8-10*6^(1/2))/4) = 0 // + (8-10*6^(1/2))/4
x = (8-10*6^(1/2))/4
x in { (10*6^(1/2)+8)/4, (8-10*6^(1/2))/4 }
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