Question

Solve the equation Axb by using the LU factorization given for A. Also solve Axb by ordinary row reduction. A ​, b Let Lyb and Uxy. Solve for x and y. nothing nothing Row reduce the augmented matrix and use it to find x. The reduced echelon form of is nothing​, yielding x nothing.

Answer 1

Answer: Hello your question is poorly written attached below is the complete question

answer:

$y = \left[\begin{array}{ccc}-4\\-11\\5\end{array}\right]$

$x = \left[\begin{array}{ccc}16\\12\\-40\end{array}\right]$

Step-by-step explanation:

$y = \left[\begin{array}{ccc}-4\\-11\\5\end{array}\right]$

$x = \left[\begin{array}{ccc}16\\12\\-40\end{array}\right]$

attached below is the detailed solution using LU factorization