Question

Cum se face?
Va rog frumos.​

Answer 1

Explicație pas cu pas:

(x-3)/(x+2)€Z <=> x+2|x-3

x+2|x-3

x+2|x+2

=> x+2|x+2-x+3 => x+2|5 =>x+2€D5 in Z =>

x+2€{-5,-1,1,5} =>

x€{-7,-3,-1,3}