PLS HELP ME!!

I really need the answers to these few questions I need toturn them in ASAP.

Factor out the GCF (Greatest Common Factor)
Hint: What can you divide every term by?
14. 3b^4-9b^2+6b

15. 4g^2+8g

16. 45c^5-63c^3+27

Factor each polynomial.
HINT: Change from x^2+bx+c to (x+p)(x+q) where p and q are the factors of c that add to b.
17. x^2+8x+12 = (x+2)(x+6)

18. t^2-5t-14

2 answers

You did fine on 17. What is happening with the other problems?
14. 3b
15. 4g
16. If 27 does not have some value of c, 9
18. -7, 2
14. 3b^4 - 9b^2 + 6b = 3b(b^3 - 3b + 2).

16. 45c^5 -63c^3 + 27. = 9(5c^5 - 7c^3 + 3).