Simplify the following expression: (x – 9)2. (1 point) Responses x2 + 18x + 81 x 2 + 18 x + 81 x2 – 18x + 81 x 2 – 18 x + 81 x2 + 81 x 2 + 81 x2 – 81

Answer 1

x^2 - 18x + 81