Factor: x^2 – 4.
Note
This is a difference of squares: x^2 - 4 = x^2 - 2^2. The factorization is (x - 2)(x + 2).
Factor: x^2 – 4.
This is a difference of squares: x^2 - 4 = x^2 - 2^2. The factorization is (x - 2)(x + 2).