SOLUTION: Compute the sum (a +(2n+1)d)^2- (a + (2n)d)^2 +(a + (2n-1)d)^2 - (a+(2n-2)d)^2 + ... + (a+d)^2 - a^2 I don't understand, can you explain in detail?

Question 1168370: Compute the sum (a +(2n+1)d)^2- (a + (2n)d)^2 +(a + (2n-1)d)^2 - (a+(2n-2)d)^2 + ... + (a+d)^2 - a^2
I don't understand, can you explain in detail?
Answer by ikleyn(52810) (Show Source): You can put this solution on YOUR website!
.

Hello, I just solved for you a TWIN problem under this link

https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1168361.html

https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1168361.html

explaining the solution in all details.

If after that you do not understand the solution of the current problem, it means that EITHER you are in wrong class
OR you do not want / (do not able) to work on your own.

Also, I expected to get your THANKS for my previous solution/ my work / my teaching, but got nothing.

Let me tell you that such a behavior is far beyond the boundaries of my understanding.

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