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2*x^2-((16/6)*x)-48 = 0
2*x^2+(-8/3)*x-48 = 0
2*x^2-8/3*x-48 = 0
DELTA = (-8/3)^2-(-48*2*4)
DELTA = 3520/9
DELTA > 0
x = ((3520/9)^(1/2)+8/3)/(2*2) or x = (8/3-(3520/9)^(1/2))/(2*2)
x = ((3520/9)^(1/2)+8/3)/4 or x = (8/3-(3520/9)^(1/2))/4
x in { (8/3-(3520/9)^(1/2))/4, ((3520/9)^(1/2)+8/3)/4 }
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