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(x/3)*x^2+(4/3)*x^2-(6*x) = 0
(x/3)*x^2+(4/3)*x^2-6*x = 0
1/3*x^3+4/3*x^2-6*x = 0
x*(1/3*x^2+4/3*x-6) = 0
1/3*x^2+4/3*x-6 = 0
DELTA = (4/3)^2-(-6*1/3*4)
DELTA = 88/9
DELTA > 0
x = ((88/9)^(1/2)-4/3)/(1/3*2) or x = (-(88/9)^(1/2)-4/3)/(1/3*2)
x = 3/2*((88/9)^(1/2)-4/3) or x = -3/2*((88/9)^(1/2)+4/3)
x = 0
x = 0
x in { -3/2*((88/9)^(1/2)+4/3), 3/2*((88/9)^(1/2)-4/3), 0 }
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