Math
posted by Jon on .
Evaluate:12 5 2
3 0 1
5 4 2
It's going to be really confusing if I post my work. I got 127 from all the confusing things I did

12 5 2
3 0 1
5 4 2
Expand the determinant along the second row:
3 times det of
5 2
4 2
= 3* 18 = 54
1 times det of
12 5
5 4
= 73
54  73 = 19