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29*x-(6*x^2)-((28/3)*x)-4 = 0
29*x-6*x^2+(-28/3)*x-4 = 0
59/3*x-6*x^2-4 = 0
DELTA = (59/3)^2-(-6*(-4)*4)
DELTA = 2617/9
DELTA > 0
x = ((2617/9)^(1/2)-59/3)/(-6*2) or x = (-(2617/9)^(1/2)-59/3)/(-6*2)
x = ((2617/9)^(1/2)-59/3)/(-12) or x = ((2617/9)^(1/2)+59/3)/12
x in { ((2617/9)^(1/2)-59/3)/(-12), ((2617/9)^(1/2)+59/3)/12 }
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