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(x^3)/2-(2*y) = 0
(x^3)/2-2*y = 0
1/2*x^3 = -(-2*y) // : 1/2
x^3 = 4*y
x^3 = 4*y // ^ 1/3
x = 4^(1/3)*y^(1/3)
x = 4^(1/3)*y^(1/3)
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