document.write( "Question 836688: proove that 4 added to the sum of consecutive terms of A P 21,39,5,... gives perfect square. \n" ); document.write( "
Algebra.Com's Answer #504334 by richard1234(7193)\"\" \"About 
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What does \"A P\" stand for? If it means \"arithmetic progression,\" the numbers 21, 39, 5 aren't in arithmetic progression. \n" ); document.write( "
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