2m^4
So basically choose B. You basically had to find the prime factors of each term in order to find the GCF
Answer:

Step-by-step explanation:
i believe this is the answer but i am not 100% sure
We could write such a number as



so we're done.
Answer:
D, 
Step-by-step explanation:
Separate -1, 2, and 100 from each other inside the radical. You can take out -1 as <em>i</em>, and 100 as 10. You now have 10<em>i</em> on the outside of the radical and 2 on the inside. Hope this helps.
Factoring this equation would get you (x+21)(x+1)