MediumRadicals & surds

OpenStax, Elementary Algebra 2e §9.7 Higher Roots · Exercise 82 · Algebra · Radicals & surds

Higher Roots · Exercise 82

Explain why $4 - 64$ is not a real number but $3 - 64$ is.

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OpenStax, Elementary Algebra 2e · §9.7 Higher Roots · Exercise 82

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