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0.25*x^2-((1/24)*x)-(5/24) = 0
0.25*x^2+(-1/24)*x-5/24 = 0
0.25*x^2-1/24*x-5/24 = 0
DELTA = (-1/24)^2-(-5/24*0.25*4)
DELTA = 0.21006944
DELTA > 0
x = (0.21006944^(1/2)+1/24)/(0.25*2) or x = (1/24-0.21006944^(1/2))/(0.25*2)
x = 2*(0.21006944^(1/2)+1/24) or x = 2*(1/24-0.21006944^(1/2))
x in { 2*(1/24-0.21006944^(1/2)), 2*(0.21006944^(1/2)+1/24) }
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