Question

Find the product of this someone helpplease.

Answer 1

`-9\left[\begin{array}{cc}7&-4\\-3&0\ \end{array}\right] = \left[\begin{array}{cc}7* -9&-4* -9\\-3* -9&0* -9\ \end{array}\right] = \left[\begin{array}{cc}-63&36\\27&0\ \end{array}\right]`