For starters, please stop whining and blaming the entire planet. If you're sttruggling, it doesn't ahve to be anyone's fault. Why not just come on over here and see if we can help a little? It's lots easier than beating up everyone and everything at UofC.

a) Can you find the first derivative of f(x)? That is what you will need. There are Product Rules and Quotient Rules in there. It is a little tedous, but you can do it. Finally, find 'x' where the Numerator is zero (0), and make sure the Denominator doesn't vanish there as well. That's about it.

b) Can you find the first derivative of f(x)? That is what you will need. There are Product Rules and Quotient Rules in there. It is a little tedous, but you can do it. Finally, find 'b' where the Numerator is zero (0), and make sure the Denominator doesn't vanish there as well. That's about it.