1. The problem statement, all variables and given/known data prove that if aba-1=b2 then a3ba-3=b8 3. The attempt at a solution Ive tried lots of different things, none of which have worked. i trield left and right multiplying by a^2 and a^-2 but couldnt figure it out. I know there is some magical trick but i cannot for the life of me figure it out.