Factor: x^2 – 9.
Note
This is a difference of squares: x^2 - 9 = x^2 - 3^2. The factorization is (x - 3)(x + 3).
Factor: x^2 – 9.
This is a difference of squares: x^2 - 9 = x^2 - 3^2. The factorization is (x - 3)(x + 3).