write 24sin3xcos3x + (10cos^2)3x - 5 in terms of just one sin function

Um... someone posted the same thing some days ago. Could it be you and you made another account?

https://www.askmehelpdesk.com/mathematics/write-24-sin3x-cos3x-10-cos-2-3x-5-terms-one-sin-function-466428.html

Anyway, try using the search function next time before asking a question.

Yeah it's actually a different question, the brackets are in a different position..
It's all good, I figured it out anyway