Question

Factor each binomial:

1) a^2 - 4

2) c^2 - 100

Answer 1

Apply the difference of squares rule for number 1  which is x² - y² = (x + y)(x - y) so > (a + 2)(a - 2)
For number 2 do the same thing :).

Answer 2

the answe is c^2 - 100