The initial values in the table are:
\[
\text{Row 1: } [-4, 6, 21, 9]
\]
The second row has some missing values, with one known value:
\[
\text{Row 2: } [2, 27, -24, 30]
\]
The third row also has a missing value:
\[
\text{Row 3: } [6, -3, 3]
\]
Step 2: Calculate the Missing Values
Using the identified pattern, we calculated the missing values in Row 2 as follows:
The first value in Row 2 is calculated as \( -4 + 6 = 2 \).
The second value in Row 2 is calculated as \( 6 + 21 = 27 \).
The fourth value in Row 2 is calculated as \( 21 + 9 = 30 \).
For Row 3, the missing value is calculated as:
The third value in Row 3 is calculated as \( 27 + (-24) = 3 \).