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x^2-((16/5)*x^2)+6*x-(35*x)+50 = 0
x^2+(-16/5)*x^2+6*x-35*x+50 = 0
50-11/5*x^2-29*x = 0
DELTA = (-29)^2-(-11/5*4*50)
DELTA = 1281
DELTA > 0
x = (1281^(1/2)+29)/(-11/5*2) or x = (29-1281^(1/2))/(-11/5*2)
x = -5/22*(1281^(1/2)+29) or x = -5/22*(29-1281^(1/2))
x in { -5/22*(1281^(1/2)+29), -5/22*(29-1281^(1/2)) }
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