Gaus -jordan elimination compared to cofactor method

[latkan]

Hey guys i am stuck with the gaus jordan method of the following matrix.

A = 1 2 3
4 5 6
3 1 -2

For the co factor i worked out the C transpose as:

1/3 (-16 7 3
26 -8 6
-11 5 -3)

The gaus jordan is suppoesed to agree with my final cofactor matrix but i can't seem to understand how to get there?? i have donw the row eliminations to get the diagonal as 1 and the rest as 0.


Add (-4 * row1) to row2

Add (-3 * row1) to row3

Divide row2 by -3

Add (5 * row2) to row3

Divide row3 by -1

Add (-2 * row3) to row2

Add (-3 * row3) to row1

Add (-2 * row2) to row1

But now i don't understand what i have to do now?

 

[HallsofIvy]

It would help if you actually told us what you are doing! The "Gauss-Jordan" method to do what? To find the inverse matrix?