A perfect cube is an integer whose cube root is an integer. For example, 27, 64

A perfect cube is an integer whose cube root is an integer. For example, 27, 64 and 125 are perfect cubes. If x and y are perfect cubes, which of the following will not necessarily be a perfect cube

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A perfect cube is an integer whose cube root is an integer. For example, 27, 64 and 125 are perfect ..

Answer / nir

27=3^3
64=8^2
125=5^3

so 64 is not a perfect cube

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