Looks good to me, but another thing you can do with #2, is turn , to be consistent with your #3 answer if you want; but your answers look perfectly fine to me!
im taking an online class and i just wanted to check my answers with someone...
1. (21x to the fifth - 14x to the fourth - 35xsquared) =
7xsquared (3x to the third - 2xsquared - 5)
is that all? or is there more to the answer??
2. (q squared +6q +9) =
3. (t squared - 16t +64)=
and i have more...