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first find the factors of 84 if there is a perfect square (4,9,16,25, etc.) multiplied by another number to get 84, then use that
so 84 has 4 and 21, so take the square root of 4 which is and put it outside of the root sign and put 21 in it

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15y ago

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Q: What is the square root of 84 using radicands?
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