How do you find b? In:
-1/5 loga 3^-3 + 1/4 loga 3^1/4 = 53/320
I have gotten as far as working out:
loga 193/100 + loga 11/10 = 53/320 (at least I think I have done this part correctly)
but I am unsure where to go from here. I think its something to do with y = loga(x) which is a^y = x but I'm unsure how to take it forward other than trial and error.