Answer:
[tex]a^3-b^3-3a^2b+3ab^2+6a^2+6b^2-12ab-10a+10b+28[/tex]
Explanation:
If you are trying to organize it, you must do the ones with the biggest exponents first to the ones with the smallest value the last.
But if you had to add like terms, its not needed, its in its simplest form
