document.write( "Question 234361: What is the common difference?
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Algebra.Com's Answer #172799 by stanbon(75887)\"\" \"About 
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What is the common difference?
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\n" ); document.write( "To find the common difference of any arithmetic sequence
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\n" ); document.write( "-4--2 = -4+2 = -2
\n" ); document.write( "-6--4 = -6+4 = -2
\n" ); document.write( "etc.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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