document.write( "Question 51869: I am having a problem solving this problem:\r
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document.write( "Is the square root of x^2 =x an identity (true for all values of x)?
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document.write( "Thanks for your time. \n" );
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Algebra.Com's Answer #34610 by THANApHD(104) You can put this solution on YOUR website! Not for only the positive x s but also negative\r \n" ); document.write( "\n" ); document.write( "U see If u multiply x*x = x^2 \n" ); document.write( " but also (-x)*(-x) also equals to x^2\r \n" ); document.write( "\n" ); document.write( "So squareroot that is written like x^(1/2)\r \n" ); document.write( "\n" ); document.write( " So square root of X^2 is equal to both (-x) and x(positive) \n" ); document.write( " \n" ); document.write( " |