What is the factored form of 9x2 – 64?
To find the factored form of 9x^2 – 64, we can use the difference of squares formula, which states that a^2 – b^2 can be factored as (a + b) (a – b).
In this case, a = 3x and b = 8:
9x^2 – 64 = (3x + 8)(3x – 8)