Question: Given the factorization explain, without computing, which elementary row operations are used to reduce A to upper triangular form. Be careful to state the order

Given the factorization 1 0 +- ( 1 9 - ( 4 1 9 6 explain, without computing, which elementary row operations are used to reduce A to upper triangular form. Be careful to state the order in which they should be applied. Then check the correctness of your answer by performing the elimination.

1 0 +- ( 1 9 - ( 4 1 9 6 1 A = -1 -3 0 -1 7 2 -4 1 3

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