1) 4 - x^2 = (4 - x^2)^(-1) = 1/(4 - x^2) 2) x^3 - 3 = (x^3 - 3)^(-1) = 1/(x^3 - 3) Your Welcome.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.