Question

What matrix results from −6·A?

Answer 1

Multiplying a matrix by a constant scales every entry in the matrix by that constant:

$A=\begin{bmatrix}-3&5&2\\8&-1&3\end{bmatrix}\implies-6A=\begin{bmatrix}18&-30&-12\\-48&6&-18\end{bmatrix}$