factor 9-25x^2

To factor 9-25x^2, we can rewrite it as a difference of squares.

The difference of squares identity states that a^2 - b^2 = (a + b)(a - b). In this case, we have a = 3 and b = 5x.

So, 9-25x^2 can be factored as (3 + 5x)(3 - 5x).