Question

Find the greatest common factor: 12a5 + 30a8

A.
a5

B.
6a

C.
6a5

D.
6a8

Answer 1

well...what goes into both 12 and 30 evenly,,,,the GCF ?
and what can be taken out of a^5 and a^8 ??

what do you think ?

Answer 2

6 X a^5

Answer 3

6 is a factor of 12 and 30
and a^5 can be factored out of a^5 and a^8
so 6*a^5 is your answer

Answer 4

let me try to pretty print it
C. \[6\times a^{5}\]