x^(2/3)-2=x^(1/3)
y^2 - 2 = y y^2 - y - 2 = 0 (y-2)(y+1) = 0 y = 2 or y = -1 then x^(1/3) = 2 x = 8 or x^(1/3) = -1 x = -1
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