Completing the Square

[paper geyser]

Divide the whole equation by 2?

Also I would suggest a better way: rewriting the function as
3(x^2-4x+11/3)
3(x^2-4x+4-4+11/3)
3(x^2-4x+4 -1/3)
3(x-2)^2 -1
This is also just completing the square

Compare it to 3(x-h)^2+k

[lofty vault]

where is the question