Final answer:
The student's question involves a matrix operation that cannot be completed because the given matrices have different dimensions, which makes addition impossible. Hence, the answer is DNE (does not exist).
Step-by-step explanation:
The question asks to perform the indicated matrix operation. However, the matrices provided cannot be added together directly because the dimensions do not match. For two matrices to be added, they must have the same dimensions. Thus, the answer to this question is that the indicated matrix operation does not exist (DNE).