document.write( "Question 1085415: 1) Find the next two terms of the following sequence: -21,-9,11,39,...
\n" ); document.write( "2) Use the explicit formula, An=(-1)^n(13n-6), to find the first five terms of the sequence. \n" ); document.write( "

Algebra.Com's Answer #699529 by math_helper(2461) $\"\"$ $\"About$

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1) The differences for the four terms given are 12,20,28, so I'd say the next two differences are 36 and 44:\r
\n" ); document.write( "\n" ); document.write( "39+36 = 75
\n" ); document.write( "75+44 = 119\r
\n" ); document.write( "\n" ); document.write( "Ans: The next two terms are 75, 119
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\n" ); document.write( "\n" ); document.write( "2) $\"+A%5B0%5D+=+%28-1%29%5E0%2813%280%29-6%29+=+6+\"$
\n" ); document.write( " $\"+A%5B1%5D+=+%28-1%29%5E1%2813%281%29+-+6%29+=+-1%2A7+=+-7+\"$
\n" ); document.write( " $\"+A%5B2%5D+=+%28-1%29%5E2%2813%282%29+-+6%29+=+20+\"$
\n" ); document.write( " $\"+A%5B3%5D+=+%28-1%29%5E3%2813%283%29+-+6%29+=+-33+\"$
\n" ); document.write( " $\"+A%5B4%5D+=+%28-1%29%5E4%2813%284%29+-+6%29+=+46+\"$
\n" ); document.write( " etc. \n" ); document.write( "

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