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alexira [117]
3 years ago
9

Simplify this radical.

" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
5 0

Answer:

2√21

Step-by-step explanation:

\sqrt{84}\\\\\mathrm{Prime\:factorization\:of\:}84:\quad 2^2\times\:3\times\:7\\=\sqrt{2^2\times\:3\times \:7}\\\\=\sqrt{2^2}\sqrt{3\times\:7}\\\\\sqrt{2^2}=2\\\\=2\sqrt{3\times\:7}\\\\=2\sqrt{21}

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