Answer:
2nd answer : it is equivalent but not completely factored
Explanation:
the "pulling out" of 3 as factor was completely correct.
but
3(x² - 4) can be further factored.
remember :
(a + b)(a - b) = (a² - b²)
therefore,
(x² - 4) = (x + 2)(x - 2)
and then
3(x + 2)(x - 2)
would be a complete factorization.