in activity 1.2.5, there are in fact multiple row operations performed in the last step. One option would be change the matrices and row operations a bit, but another might just be to add the row operations that are needed-- that is, perhaps, the activity can be worded in such a way that allows the possibility that multiple row operations may be needed.
in activity 1.2.5, there are in fact multiple row operations performed in the last step. One option would be change the matrices and row operations a bit, but another might just be to add the row operations that are needed-- that is, perhaps, the activity can be worded in such a way that allows the possibility that multiple row operations may be needed.