Solve this quadratic equation by completing the square.
x2 + 6x = 18
A. x = -6 + JT8
B. x= -6 + 227
C. x=-3 + 118
D. x = -3 1/27

Step-by-step explanation:

Let's find our C value for the quadratic equation.

That is our C. Since we added 9 to one side, we have to do the same to the other. We get:

Now, lets form the left side as a binomial squared.

Let's square both sides now:

Now, we subtract 3 from both sides to isolate the variable, X:

This means that the answers are:

I do not understand your answers though. Answer A makes no sense, answer B is 221, answer C is 115, and answer D also does not make sense. If you could clarify this portion, maybe I can help you find your alphabetic answer