Solve for x=

Question

x^2 + 45= 6x

Answer 1

x^2 - 6x = -45
x^2 - 6x + 36 = -45 + 36 , I completed the square
(x-6)^2 = -9
x-6 = ±√-9
x = 6 ± 3i

Answer 2

Thanks for the help!