Answer:
8(a+2c)
Explanation:
Hey There!
If you didn't know the greatest common factor (GFC) is the largest number that all of the numbers can be divided by and have a whole number as the outcome
For this expression the GFC is 8 because both of the terms can be divided by 8 and have a whole number as a result
8a/8=a
16c/8=2c
So the factored version of 8a+16c is 8(a+2c)