document.write( "Question 389113: Which of the following products is a rational number?
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document.write( "1: (2+sqrt[2])(2+sqrt[2])
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document.write( "2: (2+sqrt[2])(2-sqrt[2])
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document.write( "3: sqrt[2](2+sqrt[2])
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document.write( "4: 2(2-sqrt[2]) \n" );
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Algebra.Com's Answer #275617 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! #2 is rational, it is a difference of two squares problem.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " |