You can
put this solution on YOUR website!Ok, let's see if we can unravel the loop that you've ben thrown for.
First, you will need to learn to recognise cubic terms.
and
Rewrite your expression:
Once you see this, then you'll that your polynomial expression is the "difference of two cubes" for which there is a factored form, which, in general, looks like:
Thus, with no further ado, we can proceed from here.
Simplify.
(