SOLUTION: square root of 9 squared

Question 1050218: square root of 9 squared

Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!

9 OR -9

Why?
Not the same as .
Squaring and square-rooting may seem like inverse actions, but square root of positive number may be positive number or negative number; but when you square a negative number, result is a positive number.
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