1. ## Matrix =

Code:
[1  5]  [4  -2]
[-2 3]  [0   1]
Code:
   [5   3]
[-2  4]

2. Originally Posted by kwtolley
Code:
[1  5]  [4  -2]
[-2 3]  [0   1]
Code:
   [5   3]
[-2  4]
Can't be as the top left element of the product is the dot product of the
first row of the first matrix and the first column of the second, hence it
is:

$[1,\ 5] \cdot [4,\ 0]=4$,

but your answer has $5$ for this element.

RonL

3. Originally Posted by kwtolley
Code:
[1  5]  [4  -2]
[-2 3]  [0   1]
Code:
   [5   3]
[-2  4]
This is correct if you're adding the matrices together.

4. Originally Posted by Quick
This is correct if you're adding the matrices together.
I suppose that is possible, maybe I lost something in reformatting the
question that make this interpretation more likely.

RonL