document.write( "Question 1047624: Hello,\r
\n" ); document.write( "\n" ); document.write( "I need help with the following problem:\r
\n" ); document.write( "\n" ); document.write( "For what integer $\"+n+\"$ is $\"+%2810%5En-1%29%2810%5En%2B1%29+\"$ = 999,999,999,999?
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Algebra.Com's Answer #663149 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
For what integer n is $\"%2810%5En-1%29%2A%2810%5En%2B1%29+=+999999999999\"$ ?
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\n" ); document.write( " $\"%2810%5En-1%29%2A%2810%5En%2B1%29+=+10%5E12+-+1+\"$
\n" ); document.write( " $\"10%5E%282n%29+-+1+=+10%5E12+-+1+\"$
\n" ); document.write( "2n = 12
\n" ); document.write( "n = 6
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