Question

What am I doing wrong (factoring by grouping)​

Answer 1

You can still get S out of
`s^2` and
`2s` and you can still get 3 out of
`-9` and
`3`. The end result will be
`2s^3 + 3s^2-18s-27`

Answer 2

it's correct

Explanation:

if you multiply out what you got, it equls the original thing

EDIT:

oh right

s^2-9 is s+3 and s-3