Question

find the sum or difference

Answer 1

To add matrices, add the terms in the corresponding boxes. The resulting matrix will be your answer:

$\left[\begin{array}{ccc}-8&-1&7\\0&9&2\end{array}\right] + \left[\begin{array}{ccc}-2&0&-2\\-4&5&-1\end{array}\right] = \left[\begin{array}{ccc}-10&-1&5\\-4&14&1\end{array}\right]$

Answer 2

Hi there!

For adding th' matrices.
Add following terms in corresponding boxes.

$\left[\begin{array}{ccc}-8&-1&7\\0&9&2\end{array}\right] + \left[\begin{array}{ccc}-2&0&-2\\-4&5&-1\end{array}\right] = \left[\begin{array}{ccc}-10&-1&5\\-4&14&1\end{array}\right]$

~ Hope it helps!