Question

I have a practice problem that I need answered, can someone help and explain?

Answer 1

Given:-

`\begin{gathered} A=\begin{bmatrix}{-3} & {5} & {2} \\ {8} & {-1} & {3} \\ {} & {} & \end{bmatrix} \\ \end{gathered}`

Now to find the value of,

`-2R_2+3R_1`

So by simplyfying according to the given elementary row operation,