Here's the general formula for completing the square. You can skip all those in between steps.
Yes, the one you posted is correct.
equation: x^2-6x+1=5
Complete the square
x^2-6x=4
then i took have of 6 which is 3 and squared it to come up with 9
this is what I have now:
x^2-6x+9=4+9
final answer (x-3)^2=13
I don't know if this is correct but I hope so because I have 70 more to do.