below. Quiz 2 asks you to perform the next three steps of the Quiz 1 asked you t

Question

below. Quiz 2 asks you to perform the next three steps of the Quiz 1 asked you to create an augmented matrix and perform the first two operations of the Gauss elimination method to solve the system Gauss-jordan elimination process: that is: select a suitable second row, and get zeros below and above this pivot x+2y-3z-0 The systerm is 2x-5y+-1 See atached quiz 1 results. You can attach a file or write row operations and results of your quiz and submit it online for an extra 1 point credit or you can give me a paper version tomorrow in

Explanation / Answer

Augumented matrix

Find the pivot in the 1st column in the 1st row

Subtract the 1st row from the 2nd row

Multiply the 1st row by 2

Subtract the 1st row from the 3rd row and restore it

Find the pivot in the 2nd column and swap the 3rd and the 2nd rows

Multiply the 2nd row by -3

Subtract the 2nd row from the 1st row and restore it

Multiply the 2nd row by 5

Subtract the 2nd row from the 3rd row and restore it

Make the pivot in the 3rd column by dividing the 3rd row by -8

Multiply the 3rd row by 3

Subtract the 3rd row from the 1st row and restore it

Subtract the 3rd row from the 2nd row

Solution set:

x = -7

y = -4

z = -5

x y z b 1 1 -3 0 5 2 1 2 -3 0 3 2 -5 1 1

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