SOLUTION: Evaluate, the radical expression if possible. This is suppose to be a radical sign √ but this is as close as I could get. √-21

SOLUTION: Evaluate, the radical expression if possible. This is suppose to be a radical sign √ but this is as close as I could get. √-21

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Question 78047: Evaluate, the radical expression if possible.
This is suppose to be a radical sign √ but this is as close as I could get.
√-21

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Since the square root of 21 cannot be reduced any further (it has no perfect square factors) we can only reduce the problem to
where
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