Question: I need help understanding where i'm going wrong. and the last two i just need help understanding the circled ones. [0.18/0.3 Points] DETAILS PREVIOUS ANSWERS

I need help understanding where i'm going wrong. and the last two i just need help understanding the circled ones.

[0.18/0.3 Points] DETAILS PREVIOUS ANSWERS LARCOLALG10 7.2.069. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following. X1 - 2X2 + 3X3 -X1 + 3X2 X3 = 2x1 - 5X2 + 5X3 = 14 (a) Write the system of linear equations as a matrix equation, AX = B. X 3 3 X- -6 2 5 5 14 (b) Use Gauss-Jordan elimination on [A : B] to solve for the matrix X. 7 X X1 X = -6 X X3 14 X Need Help? Read It Viewing Saved Work Revert to Last Response 14. [0.16/0.3 Points] DETAILS PREVIOUS ANSWERS LARCOLALG10 7.2.070. DELL14. [0.16/0.3 Points] DETAILS PREVIOUS ANSWERS LARCOLALG10 7.2.070. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following. X1 + X2 - 3X3 - -3 -X1 + 2X2 3 X1 - X3 = 6 (a) Write the system of linear equations as a matrix equation, AX = B. 12 X 3 X X 13 (b) Use Gauss-Jordan elimination on [A : B] to solve for the matrix X. -3 X1 X X = X2 3 X X 3 6 X Need Help? Read It Watch It 15. [0.2/0.34 Points] DETAILS PREVIOUS ANSWERS LARCOLALG10 7.2.071. PRACTICE ANATIIFA DELLNeed Help? Read It Watch It 15. [0.2/0.34 Points] DETAILS PREVIOUS ANSWERS LARCOLALG10 7.2.071. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following. X1 - 5X2 + 2X3 = -13 -3x1 + * 2 - X3 = 10 -2x2 + 5X3 = -17 (a) Write the system of linear equations as a matrix equation, AX = B. X -13 X1 X7 10 0 -17 (b) Use Gauss-Jordan elimination on [A : B] to solve for the matrix X. -13 X1 X X = X2 10 X X3 -17 X Need Help? Read It DELLPRACTICE ANOTHER If possible, find AB, BA, and A2. (If not possible, enter IMPOSSIBLE.) A = [ 23 ] . 0 = [ 34] (a) AB 0 34 AB = 5 33 (b) BA 3 20 BA = 13 30 (c) A2 1 5 42 2 5 Need Help? Read It Viewing Saved Work Revert to Last Response C A webassign.net/web/Student/Assignment-Responses/last?dep=23967268?token=23 If possible, find AB, BA, and A2. (If not possible, enter IMPOSSIBLE.) A - | 8 / . 0 - [ 2 1 1 ] (a) AB 14 7 7 12 6 AB = 6 -8 -4 -4 (b) BA 16 BA = (c) A2 42 = 10 Need Help? Read It Viewing Saved Work Revert to Last Response

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