Hi guys so here's a problem that I have stumbled upon while I'm answering a worksheet I've found in the internet. I'm really not sure on how to approach this as I keep on ending up with polynomials that I don't know what to do. I tried to first factor the (b - c)^2, and multiply (b - a)/(a - c) by its conjugate to somehow find something out but I still couldn't see any connections and a next step to do
Tl;dr I'm stuck haha