Perform Matrix Row Operations
-$\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \ - 5 & 0 & 2 & - 3 \ - 1 & 1 & - 2 & - 1 \end{array} \right] - 5 R _ { 1 } + R _ { 2 }$
A)
$\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \ - 30 & 20 & - 3 & - 23 \ - 1 & 1 & - 2 & - 1 \end{array} \right]$
B)
$\left[ \begin{array} { c r r | c } 5 & - 4 & 1 & 4 \ 20 & - 20 & 7 & 17 \ - 1 & 1 & - 2 & - 1 \end{array} \right]$
C)
$\left[ \begin{array} { r r r | r } 30 & - 4 & - 9 & 19 \ - 5 & 0 & 2 & - 3 \ - 1 & 1 & - 2 & - 1 \end{array} \right]$
D)
$\left[ \begin{array} { c r r | r } - 30 & 20 & - 3 & - 23 \ - 5 & 0 & 2 & - 3 \ - 1 & 1 & - 2 & - 1 \end{array} \right]$

Question

Quizplus · Accepted Answer

The Answer is A

Perform Matrix Row Operations - [5−414−502−3−11−2−1]−5R1+R2\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right] - 5 R _ { 1 } + R _ { 2 }​5−5−1​−401​12−2​4−3−1​​−5R1​+R2​

Perform Matrix Row Operations
- $\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right] - 5 R _ { 1 } + R _ { 2 }$