This is the 567th most frequent French word.
effectué
Performed or carried out.
In this sentence, 'effectué' is used to indicate the successful completion of a task, in this case, 'ses devoirs' (their homework).
L'élève a effectué ses devoirs avant de sortir.
The student completed their homework before going out.
Here, 'effectué' describes the realization or execution of an activity, namely, 'le voyage' (the trip).
Le voyage a été effectué sans aucun problème.
The trip was carried out without any problems.
In this example, 'effectué' reflects that modifications (adjustments) to the system have been realized or implemented.