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((3*x^1)/2)*(x-2)^2-((12*x^3)/2) = 0
((3*x)/2)*(x-2)^2-6*x^3 = 0
3/2*x*(x-2)^2-6*x^3 = 0
3/2*x*(x-2)^2-6*x^3 = 0
6*x-9/2*x^3-6*x^2 = 0
6*x-9/2*x^3-6*x^2 = 0
3*x*(2-3/2*x^2-2*x) = 0
2-3/2*x^2-2*x = 0
DELTA = (-2)^2-(-3/2*2*4)
DELTA = 16
DELTA > 0
x = (16^(1/2)+2)/(-3/2*2) or x = (2-16^(1/2))/(-3/2*2)
x = -2 or x = 2/3
3*x*(x+2)*(x-2/3) = 0
3*x*(x+2)*(x-2/3) = 0
( 3*x )
3*x = 0 // : 3
x = 0
( x+2 )
x+2 = 0 // - 2
x = -2
( x-2/3 )
x-2/3 = 0 // + 2/3
x = 2/3
x in { 0, -2, 2/3 }
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