This is the 10891st most frequent Polish word.
ekonomicznych
"Economic" or "economical" (adjective, plural genitive form in Polish).
Here, "ekonomicznych" is an adjective that describes the type of difficulties, specifically those related to economics or finances.
Studenci zmagają się z trudnościami ekonomicznymi.
Students struggle with economic difficulties.
Here, "ekonomicznych" is an adjective modifying "rozwiązań" (solutions), indicating that the solutions are related to economics.
Firma podjęła decyzję w ramach rozwiązań ekonomicznych.
The company made a decision as part of economic solutions.
In this sentence, "ekonomicznych" is used as an adjective describing the motives, specifically those pertaining to economics or financial considerations.