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What do you need to do to rationalize a denominator with a cube root in it?

User Babtek
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When a denominator has a higher root, multiplying by the radicand will not remove the root. Instead, to rationalize the denominator we multiply by a number that will yield a new term that can come out of the root. For example, with a cube root multiply by a number that will give a cubic number such as 8, 27, or 64.

User SteinNorheim
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