# Augmented matrix problem?

Given the augmented matrix

A=[1 1 2 5 2 3 −6 6 −4 −8 2 6 ]

,

perform each row operation in the order specified and enter the final result.

First: −2R1+R2→R2

Second: 4R1+R3→R3

Third: 4R2+R3→R3

### 1 Answer

Relevance

- hayharbrLv 76 months ago
1 1 2 5

2 3 −6 6

−4 −8 2 6

-2 -2 -4 -10

2 3 -6 6 gives new row two 0 1 -10 -4

4 4 8 20

-4 -8 2 6 gives new row three 0 -4 10 26 so now

1 1 2 5

0 1 -10 -4

0 -4 10 26 then

0 4 -40 16

gives new row three 0 0 -30 42

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