Question

Find the greatest common factor: 14a^4 + 35a^9

A.
7a^9

B.
a^4

C.
7a^4

D.
7a

Answer 1

@robtobey

Answer 2

There's a common constant involved, so that eliminates B.

Answer 3

I dont think it's D... Right?

Answer 4

Yup, not D either. Leaving two choices.

Answer 5

So, we're left with A or C. We know we can factor out a 7 out of each term. Now, we need to figure out how many 'a's we can factor out from each term. Do you have any idea?

Answer 6

C?

Answer 7

Why would it be C? :3

Answer 8

Explain, in other words.

Answer 9

Just look for the biggest thing they have in common pretty much.