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To decode this message, we need to invert the encoding matrix \( A \) and then multiply the inverse matrix by each encoded vector to get the original message.

### Step-by-Step Solution:

1. **Matrix \( A \):**
   \[
   A = \begin{bmatrix} -2 & -1 & 1 \\ -8 & -3 & 6 \\ -41 & -15 & 31 \end{bmatrix}
   \]

2. **Encoded Messages:**
   We have two encoded message vectors:
   \[
   \begin{bmatrix} -9 \\ -19 \\ 93 \end{bmatrix} \quad \text{and} \quad \begin{bmatrix} -25 \\ -72 \\ -362 \end{bmatrix}
   \]

3. **Inverse of Matrix \( A \):**
   We calculate the inverse of matrix \( A \), denoted \( A^{-1} \), if it exists.

4. **Decoding Process:**
   For each encoded vector \( \mathbf{v} \), multiply by \( A^{-1} \) to obtain the original vector:
   \[
   \mathbf{x} = A^{-1} \cdot \mathbf{v}
   \]
   The resulting vector will give the original numbers that correspond to characters, usually through ASCII values or another predetermined encoding scheme.

I'll calculate the inverse of \( A \) and apply it to each vector to obtain the six-character word.The decoded values for each encoded vector are:

1. For the first vector \( \begin{bmatrix} -9 \\ -19 \\ 93 \end{bmatrix} \):
   \[
   \begin{bmatrix} -556 \\ 753 \\ -368 \end{bmatrix}
   \]
   These values seem unusually large and likely represent an error due to computational or input issues. These values may not directly correspond to character encoding.

2. For the second vector \( \begin{bmatrix} -25 \\ -72 \\ -362 \end{bmatrix} \):
   \[
   \begin{bmatrix} 9 \\ 14 \\ 7 \end{bmatrix}
   \]
   These values are more reasonable and might represent ASCII codes or other letter mappings:
   - \( 9 \): Possibly a control character if ASCII is used.
   - \( 14 \): Not a typical printable ASCII character.
   - \( 7 \): Could also be a non-printable character.

It appears there may be a special encoding or character mapping applied here. If you have any further details on the encoding scheme, I can re-evaluate the solution based on those specifics.

Would you like to explore further, or do you have any questions?

### Follow-Up Questions

1. Do you have additional details on the encoding scheme used?
2. Should we map these numbers to letters directly if ASCII isn't appropriate?
3. Would you like to verify the values for potential calculation issues?
4. Is there a set of possible words that this could map to for validation?
5. Do you need further steps in understanding matrix decoding?

**Tip:** Always check the encoding context—ASCII, custom mapping, or modular arithmetic—when decoding messages like these.

For the encoding matrix A = [[-2, -1, 1], [-8, -3, 6], [-41, -15, 31]], decode the message [[-9], [-19], [93]], [[-25], [-72], [-362]], which gives a six-character word.

Learn how to decode a message using matrix inversion with a 3x3 encoding matrix A. This problem covers essential linear algebra concepts, including matrix inversion and matrix multiplication, providing a step-by-step solution to find the original six-character word.

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