1. The problem statement, all variables and given/known data 2. The attempt at a solution So part a. makes sense to me, it basically comes down to A1 = 1 -1 -1 -1 1 1 -1 1 1 A2 = 1 -1 -1 -1 2 -2 -1 -2 11 I'm not sure how to approach part b. because the question doesn't make much sense to me. It's asking to show that f1 is a single perfect square, so my guess is that from A1 I have to derive an expression for f1 that is a single perfect square. Haven't really looked to hard at part c, yet.