document.write( "Question 419284: 'Lipin thinks of a number.\r
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document.write( "She doubles the number and then adds it to the reciprocal of the number.\r
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document.write( "She gets the answer 3.\r
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document.write( "Write down and solve an equation to work out the two possible numbers that lipin could be thinking of.\r
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document.write( "You must show your working.'\r
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document.write( "any help would be great :) \n" );
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Algebra.Com's Answer #293254 by sudhanshu_kmr(1152)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "let number = x\r \n" ); document.write( "\n" ); document.write( "then 2x + 1/x = 3\r \n" ); document.write( "\n" ); document.write( "=> 2x^2 + 1 = 3x\r \n" ); document.write( "\n" ); document.write( "=> 2x^2 -3x +1 = 0\r \n" ); document.write( "\n" ); document.write( "=>(2x-1)(x-1) =0 , after factorization\r \n" ); document.write( "\n" ); document.write( "so, x = 1/2 , 1 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |