Form the Matrix A

Given:

\[ a_{ij} = i + 2j,\quad A \text{ is } 2 \times 2 \]

Step 1: Compute Each Element

\[ a_{11} = 1 + 2(1) = 3 \]

\[ a_{12} = 1 + 2(2) = 5 \]

\[ a_{21} = 2 + 2(1) = 4 \]

\[ a_{22} = 2 + 2(2) = 6 \]

Step 2: Write the Matrix

\[ A = \begin{bmatrix} 3 & 5 \\ 4 & 6 \end{bmatrix} \]

Final Answer:

\[ A = \begin{bmatrix} 3 & 5 \\ 4 & 6 \end{bmatrix} \]