Question

solve by completing the square

Answer 1

Answer:

(6 ± √72i) / 6

Hope this helps.

Answer 2

Answer:

Step-by-step explanation:

3$x^{2}$-6x+9=0

3$x^{2}$ +3x-9x+9=0  (splitting  -6x as +3x & -9x)

3x(x+1)-9(x+1)=0

(x+1)(3x-9)=0

x=-1,3