8x⁵ + 4x² - 12
All numbers are divisible by 4, so we put 4 on the outside of the parenthesis.
So, when doing that, all you have to do is divide everything by 4.
4(2x⁵ + x² - 3)
So, your answer is the first answer choice.
~Hope I helped!~
(If this was a little bit confusing, please make sure to message me, or comment!)