Answer:
A. a³ + 4a² - 4a - 16
Step-by-step explanation:
1) Factor out 3 (3a⁴ + 12a³ - 12a² - 48a)
2) a⁴ + 4a³ - 4a² - 16a
3) Factor out (a) (a⁴ + 4a³ - 4a² - 16a)
Ex a(a⁵) turns into a⁴ because you subtract the exponents
4) Answer: a³ + 4a² - 4a - 16
You can do this all at once but I separated it.
