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x in (-oo:+oo)
x^2-((11/3)*x) = 3 // - 3
x^2-((11/3)*x)-3 = 0
x^2+(-11/3)*x-3 = 0
x^2-11/3*x-3 = 0
DELTA = (-11/3)^2-(-3*1*4)
DELTA = 229/9
DELTA > 0
x = ((229/9)^(1/2)+11/3)/(1*2) or x = (11/3-(229/9)^(1/2))/(1*2)
x = ((229/9)^(1/2)+11/3)/2 or x = (11/3-(229/9)^(1/2))/2
x in { (11/3-(229/9)^(1/2))/2, ((229/9)^(1/2)+11/3)/2 }
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