a^4:a^8
Oh, ok I'm not going to pretend I understood that. But someone answered the question, so yay!
It's joke.
there is no answer
If it's not, I've never learned how to do it.:)))))))))
The colon usually indicates proportion or ratio, so \(a^4:a^8 \rightarrow \frac{a^4}{a^8} \rightarrow a^{4-8} \rightarrow a^{-4}\)
You lot are really funny
Thanks for coming to the rescue Alan :)