1. The problem appears to involve solving the equation $$(x - 9)^2 = 81$$. 2. This is a quadratic equation in the form $$(x - a)^2 = b^2$$, which can be solved by taking the square root of both sides. 3. Taking the square root of both sides gives two possible solutions: $$x - 9 = 9 \quad \text{or} \quad x - 9 = -9$$ 4. Solve each equation separately: - For $x - 9 = 9$, add 9 to both sides: $$x = 18$$ - For $x - 9 = -9$, add 9 to both sides: $$x = 0$$ 5. Therefore, the solutions to the equation are $$x = 18$$ and $$x = 0$$. Note: The other expressions in the message are unclear or incomplete, so only the first clear equation is solved here.