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