document.write( "Question 836844: I have tried for a long time to figure out, what the following numbers are:\r
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Algebra.Com's Answer #504372 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "t(n) = an² + bn + c\r\n" );
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document.write( "t(1) = a(1)² +b(1) + c =  a +  b + c = 2\r\n" );
document.write( "t(2) = a(2)² +b(2) + c = 4a + 2b + c = 5\r\n" );
document.write( "t(3) = a(3)² +b(3) + c = 9a + 3b + c = 19\r\n" );
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document.write( "\"system%28a+%2B++b+%2B+c+=+2%2C4a+%2B+2b+%2B+c+=+5%2C+9a+%2B+3b+%2B+c+=+19%29\"\r\n" );
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document.write( "Solve that system and get a = \"11%2F2\", b = \"-27%2F2\", c = \"10\"\r\n" );
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document.write( "t(n) = an² + bn + c\r\n" );
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document.write( "t(n) = \"expr%2811%2F2%29n%5E2-expr%2827%2F2%29n%2B10\" \r\n" );
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document.write( "t(1) = \"expr%2811%2F2%291%5E2-expr%2827%2F2%291%2B10\" = 2\r\n" );
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document.write( "t(2) = \"expr%2811%2F2%292%5E2-expr%2827%2F2%292%2B10\" = 5\r\n" );
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document.write( "t(3) = \"expr%2811%2F2%293%5E2-expr%2827%2F2%293%2B10\" = 19\r\n" );
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document.write( "t(4) = \"expr%2811%2F2%294%5E2-expr%2827%2F2%294%2B10\" = 44 = x\r\n" );
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document.write( "t(5) = \"expr%2811%2F2%295%5E2-expr%2827%2F2%295%2B10\" = 80 = y\r\n" );
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document.write( "Edwin

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