State and perform the next elementary row operations that should be performed to put the matrix in diagonal form

Question

1 2 -3 3
2 -4 6 8
3 6 15 12

Answer 1

well, in that first column I would like to see
1
0
0

so I would multiply row 1 by 2
subtract the result from row two
and put that result where row 2 is

then I would multiply row 1 by 3 instead of by 2 and subtract the result from row three, placing the result in row three.

Answer 2

Damon,

Thank you for your help! Your explanation really helped me to understand the problem.

Answer 3

Would you be willing to help me with my question?

Answer 4

Yes, thank you Damon for your help with this. Hope you had a great 4th of July.

Krystal