X + x, + 4x, 9х, = 7 X2 2х, + 6х, 17x, = 5 2x2 4x, + 9x, 25х, 12x, = 4 = 7 4x4 explain the solution to obtain (x, ,x,,x, , X4 , X3 ) using the Gaussian Elimination procedure with back substitution. +

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.2: Guassian Elimination And Matrix Methods
Problem 84E: Explain the differences between Gaussian elimination and Gauss-Jordan elimination.
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For the following system of linear equations:

x + x,
+ 4x,
9x,
7
X3
2x, + 6x,
17x,
2x2
4x, + 9x,
25х,
7
4x4
12x,
4
explain the solution to obtain (x, ,x,,X4,x4,x3) using the Gaussian Elimination procedure
with back substitution.
+
Transcribed Image Text:x + x, + 4x, 9x, 7 X3 2x, + 6x, 17x, 2x2 4x, + 9x, 25х, 7 4x4 12x, 4 explain the solution to obtain (x, ,x,,X4,x4,x3) using the Gaussian Elimination procedure with back substitution. +
the augmented matrix representing the system
• the elementary row operations(EROS) according to the Gaussian Elimination method
• the row echelon form(REF) of the augmented matrix
• the equivalent system from the REF
• the declaration of leading variables and free variables
• the back substitution in an orderly fashion
• the assumption of parameters a, ß, y, etc. for the free variables (if any)
the answer for (x,,X2,X3,X4,X3) in the form of (_, _, _, _,)+a(,,_,_,)+..
Transcribed Image Text:the augmented matrix representing the system • the elementary row operations(EROS) according to the Gaussian Elimination method • the row echelon form(REF) of the augmented matrix • the equivalent system from the REF • the declaration of leading variables and free variables • the back substitution in an orderly fashion • the assumption of parameters a, ß, y, etc. for the free variables (if any) the answer for (x,,X2,X3,X4,X3) in the form of (_, _, _, _,)+a(,,_,_,)+..
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