Answer
The corresponding elements of the two matrices must be subtracted.
The result should have the same size as the two matrices.
The correct answer is:
$\begin{bmatrix}3\\ -2 \end{bmatrix}$
Work Step by Step
This is subtraction of matrices, subtract the elements of the second matrix to the corresponding elements of the first matrix.
The end result should be equal in size to the two individual matrices.
Thus,
$\begin{bmatrix}(6-3)\\ (5-7) \end{bmatrix}=\begin{bmatrix}3\\ -2 \end{bmatrix}$
