Oliver's work is not accurate.
The correct factors of the equation \((x + 3)(x + 4) = 0\) are:
- \(x + 3 = 0\)
- \(x + 4 = 0\)
Therefore, in the second row of his work, he incorrectly wrote \(x - 3 = 0\) instead of \(x + 3 = 0\).
So the correct response is: No, \(x - 3 = 0\) in the second row should be \(x + 3 = 0\).