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X in (-oo:+oo)
144 = (X*X-(3*8))/3 // - (X*X-(3*8))/3
144-((X*X-(3*8))/3) = 0
144-((X*X-24)/3) = 0
(-1*(X^2-24))/3+144 = 0
(-1*(X^2-24))/3+(3*144)/3 = 0
3*144-1*(X^2-24) = 0
456-X^2 = 0
(456-X^2)/3 = 0
(456-X^2)/3 = 0 // * 3
456-X^2 = 0
-1*X^2 = -456 // : -1
X^2 = 456
X^2 = 456 // ^ 1/2
abs(X) = 2*114^(1/2)
X = 2*114^(1/2) or X = -(2*114^(1/2))
X in { 2*114^(1/2), -(2*114^(1/2)) }
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