Respuesta :

The factored expression of 9x^2 - 1 is (3x -1)(3x + 1)

How to factor the polynomial?

The polynomial expression is given as:

9x^2 - 1

Express 9x^2 as a perfect square

(3x)^2 - 1

Apply the difference of two squares

(3x -1)(3x + 1)

Hence, the factored expression of 9x^2 - 1 is (3x -1)(3x + 1)

Read more about factoring at:

https://brainly.com/question/19386208

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