SOLUTION: proove that 4 added to the sum of consecutive terms of A P 21,39,5,... gives perfect square.

SOLUTION: proove that 4 added to the sum of consecutive terms of A P 21,39,5,... gives perfect square.

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Question 836688: proove that 4 added to the sum of consecutive terms of A P 21,39,5,... gives perfect square.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
What does "A P" stand for? If it means "arithmetic progression," the numbers 21, 39, 5 aren't in arithmetic progression.
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