Write augmented matrix, apply Gauss-Jordan, and solve system

[singing]

help needed immediatly before tommorrow:

(a) Write down the augmented matrix corresponding to the linear system:
4x1 + 2x2 − 7x3 − 11x4 = 5
2x1 + 1x2 − 2x3 − 4x4 = 2
4x1 + 2x2 − 10x3 − 14x4 = 6

(b) Use Gauss-Jordan elimination to reduce this matrix to reduced row-echelon form.
(c) Solve the linear system.

 

[Deleted member 4993]

(a) Write down the augmented matrix corresponding to the linear system:
4x1 + 2x2 − 7x3 − 11x4 = 5
2x1 + 1x2 − 2x3 − 4x4 = 2
4x1 + 2x2 − 10x3 − 14x4 = 6


(b) Use Gauss-Jordan elimination to reduce this matrix to reduced row-echelon form.
(c) Solve the linear system.

Hint: You 4 unknowns and 3 linear equations. You'll have (3 X 5) augmented matrix.

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