Help please i got absolutely no clue how to solve this

the answer is you licked my ice-cream

A)

Step-by-step explanation:

To complete the square, we need to find such p and q that:

r^2 - 12r - 27 = (r - p)^2 - q =  r^2 - 2pr + h^2 - q

Because we know that 2pr = 12r, then p = 6

(r - p)^2 - q = (r - 6)^2 - q = r^2 - 12r + 36 - q

We know that 36 - q = -27, so q = 36+27 = 63

Now we can solve for = 0

(r - 6)^2 - 63 = 0

(r - 6)^2 = 63

r - 6 = √63   or     r - 6 = -√63

r = 6 + √63 = 6 + 3√7      or    r = 6 - √63 = 6 - 3√7

what is the answer?