help

 

Two consecutive integers a and b, where a is bigger, have a sum of 7.  Find a^2 - b^2.   

 

I must be missing something here, because it's obvious that

4 and 3 satisfy the requirement to be consecutive and total 7. 

 

So 4² – 3²   =  16 – 9   =   7                    What am I missing?

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