document.write( "Question 1050218: square root of 9 squared
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Algebra.Com's Answer #665793 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"sqrt%289%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%289%2A9%29\"\r
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\n" ); document.write( "\n" ); document.write( "Why?
\n" ); document.write( "Not the same as \"%28sqrt%289%29%29%5E2\".
\n" ); document.write( "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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