1 -1 -1 1 2

0 1 -3 -7 0
3 0 -2 2 10
6 2 4 5 9

-3Row1 + Row3

-6Row1 + Row4

How do I work this using a calculator I get so confused and I don't know where to go in order to input info.

To perform the given operations using a calculator, you need to follow these steps:

1. Arrange the given matrix:

[1 -1 -1 1 2]
[0 1 -3 -7 0]
[3 0 -2 2 10]
[6 2 4 5 9]


2. Apply the first operation, "-3Row1 + Row3":

row3 = -3 * row1 + row3

[1 -1 -1 1 2]
[0 1 -3 -7 0]
[0 3 -1 -1 4]
[6 2 4 5 9]


3. Apply the second operation, "-6Row1 + Row4":

row4 = -6 * row1 + row4

[1 -1 -1 1 2]
[0 1 -3 -7 0]
[0 3 -1 -1 4]
[0 8 10 -1 3]


Now, to input this matrix into a calculator and perform calculations, you can use most graphing calculators or matrix-related software. Here are the general steps:

1. Turn on your calculator and go to the matrix or vector input section.

2. Create a new matrix, let's say "A," with 4 rows and 5 columns.

3. Input the elements of the given matrix row by row.

4. Apply the given operations by multiplying rows by respective coefficients and adding or subtracting them to other rows.

5. Make sure to check for any mistakes or errors while inputting the matrix or performing calculations.

Note: The exact steps may vary slightly depending on the calculator or software you are using. Refer to the user manual or online tutorials specific to your calculator for more accurate instructions.