The given expression is x^2 - y^2 - 6x + 9.
This expression can be factored using the difference of squares formula, which states that a^2 - b^2 = (a + b)(a - b).
In this case, we have x^2 - y^2, which can be factored as (x + y)(x - y).
Therefore, the factored form of x^2 - y^2 - 6x + 9 is (x + y)(x - y) - 6x + 9.
The given expression is x^2 - y^2 - 6x + 9.
This expression can be factored using the difference of squares formula, which states that a^2 - b^2 = (a + b)(a - b).
In this case, we have x^2 - y^2, which can be factored as (x + y)(x - y).
Therefore, the factored form of x^2 - y^2 - 6x + 9 is (x + y)(x - y) - 6x + 9.