If possible, find A - B. $A = \left[ \begin{array} { c c }
9 & 8 \
6 & - 6
\end{array} \right] , B = \left[ \begin{array} { c c }
- 8 & - 3 \
2 & 8
\end{array} \right]$
A) $\left[ \begin{array} { c c }
17 & 11 \
4 & - 14
\end{array} \right]$
B) $\left[ \begin{array} { l l }
1 & 5 \
8 & 2
\end{array} \right]$
C) $\left[ \begin{array} { c c }
17 & 8 \
6 & - 14
\end{array} \right]$
D) $\left[ \begin{array} { c c }
- 88 & - 91 \
- 36 & 30
\end{array} \right]$
E)not possible

Question

If possible, find A - B. $A = \left[ \begin{array} { c c } 
9 & 8 \
6 & - 6
\end{array} \right] , B = \left[ \begin{array} { c c } 
- 8 & - 3 \
2 & 8
\end{array} \right]$
A) $\left[ \begin{array} { c c } 
17 & 11 \
4 & - 14
\end{array} \right]$
B) $\left[ \begin{array} { l l } 
1 & 5 \
8 & 2
\end{array} \right]$
C) $\left[ \begin{array} { c c } 
17 & 8 \
6 & - 14
\end{array} \right]$
D) $\left[ \begin{array} { c c } 
- 88 & - 91 \
- 36 & 30
\end{array} \right]$
E)not possible

Quizplus · Accepted Answer

To find $A - B$, subtract each element of matrix $B$ from the corresponding element in matrix $A$: $$A - B = \left[ \begin{array} { c c } (9 - (-8)) & (8 - (-3)) \ (6 - 2) & (-6 - 8) \end{array} \right] = \left[ \begin{array} { c c } 17 & 11 \ 4 & -14 \end{array} \right]$$

If Possible, Find a - B A=[986−6],B=[−8−328]A = \left[ \begin{array} { c c } 9 & 8 \\6 & - 6\end{array} \right] , B = \left[ \begin{array} { c c } - 8 & - 3 \\2 & 8\end{array} \right]A=[96​8−6​],B=[−82​−38​]

If Possible, Find a - B $A = \left[ \begin{array} { c c } 9 & 8 \\6 & - 6\end{array} \right] , B = \left[ \begin{array} { c c } - 8 & - 3 \\2 & 8\end{array} \right]$