Solve the equation by completing the square. Round to the nearest tenth.

1.1, 9.1
1.1, -9.1
-1.1, 9.1
-1.1, -9.1

I'm sorry, it seems like there is a mistake in the question. In order to solve an equation by completing the square, we need the equation itself. Could you please provide the equation so that I can help you solve it?