SOLUTION: Evaluate if possible sqrt of -225

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Question 49828: Evaluate if possible
sqrt of -225
Answer by gsmani_iyer(201) About Me  (Show Source):
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No negative number can be a perfect square. Hence, square root of -225 can not be evaluated. Because, if the square root is negative or positive, then its square has got to be positive. But in no way a square can be negative.
But sqrt%28-225%29 can be at the most written as 5sqrt%28-9%29 as it is equal to sqrt%28-9%2A25%29.