any algebraic number of degree 3, while expressed using integers, +-*/ and roots, requires a nth root, where n>3 or requires at least two roots (ie two square roots, two cube roots, one of each, etc)
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any algebraic number of degree 3, while expressed using integers, +-*/ and roots, requires a nth root, where n>3 or requires at least two roots (ie two square roots, two cube roots, one of each, etc)
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any algebraic number of degree 3, while expressed using integers, +-*/ and roots, requires a nth root, where n>3 or requires at least two roots (ie two square roots, two cube roots, one of each, etc)