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x in (-oo:+oo)
((2*x-4)^2)/4-(4*x) = 349 // - 349
((2*x-4)^2)/4-(4*x)-349 = 0
((2*x-4)^2)/4-4*x-349 = 0
((2*x-4)^2)/4+(-4*4*x)/4+(-349*4)/4 = 0
(2*x-4)^2-4*4*x-349*4 = 0
4*x^2-32*x-1396+16 = 0
4*x^2-32*x-1380 = 0
4*x^2-32*x-1380 = 0
4*(x^2-8*x-345) = 0
x^2-8*x-345 = 0
DELTA = (-8)^2-(-345*1*4)
DELTA = 1444
DELTA > 0
x = (1444^(1/2)+8)/(1*2) or x = (8-1444^(1/2))/(1*2)
x = 23 or x = -15
4*(x+15)*(x-23) = 0
(4*(x+15)*(x-23))/4 = 0
(4*(x+15)*(x-23))/4 = 0 // * 4
4*(x+15)*(x-23) = 0
( x+15 )
x+15 = 0 // - 15
x = -15
( x-23 )
x-23 = 0 // + 23
x = 23
x in { -15, 23 }
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