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(6*x^2)/3-((17*x^1)/3)-3 = 0
(6*x^2)/3+(-17/3)*x-3 = 0
2*x^2-17/3*x-3 = 0
DELTA = (-17/3)^2-(-3*2*4)
DELTA = 505/9
DELTA > 0
x = ((505/9)^(1/2)+17/3)/(2*2) or x = (17/3-(505/9)^(1/2))/(2*2)
x = ((505/9)^(1/2)+17/3)/4 or x = (17/3-(505/9)^(1/2))/4
x in { (17/3-(505/9)^(1/2))/4, ((505/9)^(1/2)+17/3)/4 }
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