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0 = 3*x^2-((5/2)*x)-(16/3) // - 3*x^2-((5/2)*x)-(16/3)
(5/2)*x-(3*x^2)+16/3+0 = 0
(5/2)*x-3*x^2+16/3 = 0
5/2*x-3*x^2+16/3 = 0
DELTA = (5/2)^2-(-3*4*16/3)
DELTA = 281/4
DELTA > 0
x = ((281/4)^(1/2)-5/2)/(-3*2) or x = (-(281/4)^(1/2)-5/2)/(-3*2)
x = ((281/4)^(1/2)-5/2)/(-6) or x = ((281/4)^(1/2)+5/2)/6
x in { ((281/4)^(1/2)-5/2)/(-6), ((281/4)^(1/2)+5/2)/6 }
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