Hello again, I cannot remember for the life of me how to do this sort of problem. I know that the answer is not zero or undefined though. (A) DNE (B) 0 (C) (D) -1 / a^3 (E) All assistance is appreciated.

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Originally Posted by EuptothepiI Hello again, I cannot remember for the life of me how to do this sort of problem. I know that the answer is not zero or undefined though. (A) DNE (B) 0 (C) (D) -1 / a^3 (E) All assistance is appreciated. Hint: you can treat as the difference of two squares

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