Multiple Choice

A laboratory technician is reviewing a mathematical report on material stress that includes the expressions 643\sqrt[3]{-64}, 164\sqrt[4]{-16}, and 2435\sqrt[5]{-243}. The technician notices that some of these expressions result in real numbers while others do not. According to the rules for radicals, which property of the radical should the technician check first to determine if a negative radicand will yield a real number result?

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Updated 2026-04-20

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