document.write( "Question 235092: 3 over 7 minus the square root of 2
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document.write( "Okay so I multiplyed by the opposite, which would be 7 plus square root of 2 on both the deonominator and top.
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document.write( "I got 21 + 3 to the radical of 2 over 47
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document.write( "Did I do this right or am I totally wrong? \n" );
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Algebra.Com's Answer #173264 by Theo(13342)![]() ![]() You can put this solution on YOUR website! 3 / (7-sqrt(2))\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To remove the square root from the denominator, multiply numerator and denominator by (7+sqrt(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3 * (7+sqrt(2)) / 49 - 2 which equals:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "21 + 3*sqrt(2) / 47\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If \"21 + 3 to the radical of 2 over 47\" is the same as \"21 + 3*sqrt(2)\" then you got it right.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "sqrt(2) looks like \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It's not 3 to the radical of 2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It would be 3 times the radical of 2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I would say it as 3 times the square root of 2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The answer would look like \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |