Question
Compute $\left[\begin{array}{ccc} {-1} & {4} & {-6} \\ {8} & {5} & {16} \\ {2} & {8} & {5} \end{array}\right]+\left[\begin{array}{ccc} {12} & {7} & {6} \\ {8} & {0} & {5} \\ {3} & {2} & {4} \end{array}\right]$
✓
Answer
$\left[\begin{array}{ccc} {-1} & {4} & {-6} \\ {8} & {5} & {16} \\ {2} & {8} & {5} \end{array}\right]+\left[\begin{array}{ccc} {12} & {7} & {6} \\ {8} & {0} & {5} \\ {3} & {2} & {4} \end{array}\right]$
= $\left[\begin{array}{ccc} {-1+12} & {4+7} & {-6+6} \\ {8+8} & {5+0} & {16+5} \\ {2+3} & {8+2} & {5+4} \end{array}\right]$
= $\left[\begin{array}{ccc} {11} & {11} & {0} \\ {16} & {5} & {21} \\ {5} & {10} & {9} \end{array}\right]$
= $\left[\begin{array}{ccc} {-1+12} & {4+7} & {-6+6} \\ {8+8} & {5+0} & {16+5} \\ {2+3} & {8+2} & {5+4} \end{array}\right]$
= $\left[\begin{array}{ccc} {11} & {11} & {0} \\ {16} & {5} & {21} \\ {5} & {10} & {9} \end{array}\right]$
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