What is the answer x by the power if two minus nine?

The expression "x by the power of two minus nine" can be interpreted as (x^2 - 9). This represents a quadratic expression where (x^2) is the square of (x), and then 9 is subtracted from it. If you are looking for the roots or solutions of the equation (x^2 - 9 = 0), they would be (x = 3) and (x = -3).