document.write( "Question 1050218: square root of 9 squared
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Algebra.Com's Answer #665793 by josgarithmetic(39620)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9 OR -9\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Why? \n" ); document.write( "Not the same as \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. \n" ); document.write( " |