The factors of (4a^2 - 16) are?

4(a - 2)(a + 2)

4(a + 2)(a + 2)

(a - 2)(a - 2)

None of these

To factor the expression:

4a² - 16

First, factor out the greatest common factor (GCF), which is 4:

4(a² - 4)

Then, recognize the difference of squares pattern:

a² - 4 = (a - 2)(a + 2)

So, the factored form is:

4(a - 2)(a + 2)