document.write( "Question 1159691: a^(1)=-20, r=-2, n=9 \n" ); document.write( "
Algebra.Com's Answer #782726 by ikleyn(52790)\"\" \"About 
You can put this solution on YOUR website!
.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Where \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "    is\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "         your\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "             question ?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "                 ?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "                     ?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "                        ?\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );