1. The problem statement, all variables and given/known data In an ordered ring, show that If a>0, b>0, then a>b <--> (a^2)>(b^2). Hint: [(b^2)-(a^2)] = (b-a)(b+a). Use Rule of Signs. 2. Relevant equations Rule of Signs???? 3. The attempt at a solution I don't know how to use the hint and I'm having trouble with the proof, as this is my first proofs class.