Question

Question 4

Answer 1

Upload it

Answer 2

\[A=\begin{pmatrix}8&-1&-3\\-5&1&2\\10&-1&-4\end{pmatrix}\]

Answer 3

so the first row is
8 -1 -3
the second row is
-5 1 2
and the third row is
10 -1 -4

Answer 4

the idea with Gaussian elimination is to get the matrix to row-echelon-form

Answer 5

so lets make the first row and third rows simpler, by adding the second row two them

Answer 6

okay can u show me the answer to make sure
@UnkleRhaukus

Answer 7

is there something missing from the question

Answer 8

nop it came like that

Answer 9

@UnkleRhaukus

Answer 10

You mean to make it
\[\left[\begin{matrix}8 & -1 & -3 \\0 & 1 & 2 \\ 0 & 0 & -4\end{matrix}\right]\]
then solve the question?