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12*x^2+x-((4/3)*x)-2 = 0
12*x^2+x+(-4/3)*x-2 = 0
12*x^2-1/3*x-2 = 0
DELTA = (-1/3)^2-(-2*4*12)
DELTA = 865/9
DELTA > 0
x = ((865/9)^(1/2)+1/3)/(2*12) or x = (1/3-(865/9)^(1/2))/(2*12)
x = ((865/9)^(1/2)+1/3)/24 or x = (1/3-(865/9)^(1/2))/24
x in { (1/3-(865/9)^(1/2))/24, ((865/9)^(1/2)+1/3)/24 }
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