document.write( "Question 1038698: Please help me with this
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\n" ); document.write( "8, 4, 2, 1,
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\n" ); document.write( "2, 5, 10, 17 \n" ); document.write( "

Algebra.Com's Answer #653464 by ikleyn(52790) $\"\"$ $\"About$

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document.write( "1, 4, 9, 16,          = , n = 1, 2, 3, 4\r\n" );
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document.write( "2, -6, 18, 54 \r\n" );
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document.write( "8, 4, 2, 1,          Geom. progression,  = , n= 1, 2, 3, 4\r\n" );
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document.write( "X, x+y, x+ 2y        Arithm. progression of three terms\r\n" );
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document.write( "2, 5, 10, 17         Consider the differences - they form an arithm. progression 3, 5, 7.\r\n" );
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