You factored out the 6 incorrectly from the last equation. Check your work please.
Also what do you mean by a prime algebra equation?
1. 242y^4-200x^6
2. w^2+w-16
3. x^8-y^8
4. 4x^2+y^2
5. 6ax+3bx-2b-4a
6. 2x^2+8x+8
Thanks
And for the equation 30a^2bc+6abc-12
is the simplest form of that
6(5a^2bc+abc-2)
or can it can go simpler?