Question

Factor x² - 4 A) (x + 2) (x - 2)B) (x + 2)²C) (x - 2)² D) (x - 4) (x + 4)

Answer 1

To factor the polynomial, we will use the difference of two square formula

Thus, for

`(x^2-4)`

we will have

`(x^2-4)=(x^2-2^2)`

Hence

`(x^2-2^2)=(x+2)(x-2)`

Thus the answer is

`(x+2)(x-2)`

Option A is correct