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(8*x^2)/3-((23*x^1)/3)-3 = 0
(8*x^2)/3+(-23/3)*x-3 = 0
8/3*x^2-23/3*x-3 = 0
DELTA = (-23/3)^2-(-3*8/3*4)
DELTA = 817/9
DELTA > 0
x = ((817/9)^(1/2)+23/3)/(2*8/3) or x = (23/3-(817/9)^(1/2))/(2*8/3)
x = 3/16*((817/9)^(1/2)+23/3) or x = 3/16*(23/3-(817/9)^(1/2))
x in { 3/16*(23/3-(817/9)^(1/2)), 3/16*((817/9)^(1/2)+23/3) }
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