1. The problem statement, all variables and given/known data u^2 --------------- u^2 - 4 2. Relevant equations I am told that this is equal to 1+ 4/u^2 - 4 3. The attempt at a solution No clue how these two are related. Factor out a u^2/u^2? But that alters the denominator. My next that is partial fraction decomp. Am I on track?