Please could someone help me, I have no idea what these questions are about :S
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Hint: Try using n^2 - 3 = n^2 - 1 - 2 = (n-1)(n+1) - 2 and take it from there.
How do I take it from there?
Originally Posted by calmo11 How do I take it from there? Do you expect us to do a graded exercise for you?
I hope that none of us is that academic dishonest. (Soroban may be?)
No this is the practice question from a unit I missed when I was on holiday, and I just really don't know what to do.
Hint: Think about when n is even and also when it is odd. Consider both cases separately.