Which of the following represents the factored form of the expression x^2 - 9?

Which of the following represents the factored form of the expression x^2 - 9?

Step 1: Identify the expression you have, which is x^2 - 9.
Step 2: Recognize that x^2 - 9 is a special type of expression called a 'difference of squares'.
Step 3: Understand that a difference of squares can be factored using the formula a^2 - b^2 = (a - b)(a + b).
Step 4: In this case, a is x and b is 3 because 9 is 3^2.
Step 5: Apply the formula: Replace a with x and b with 3 in the formula (a - b)(a + b).
Step 6: Write the factored form as (x - 3)(x + 3).

No concepts available.