a student factors 3x^2-12 to the following 3(x^2-4) which statement is true?

Answer:
The expression is equivalent but is not completely factored
Step-by-step explanation:
Given
3x² - 12 ← factor out 3 from each term
= 3(x² - 4) ← x² - 4 is a difference of squares
= 3(x - 2)(x + 2) ← completely factored