Question

Fie mulțimea a={x aparține z| x+5/x+3 aparține z} a={. }


/-linie de fractie

Answer 1

(x+5)/(x+3)=(x+3+2)/(x+3)=1+2/(x+3)
x+3 I 2      x+3={-2,-1,1,2}
x+3=-2      x=-5
x+3=-1      x=-4
x+3=1       x=-2
x+3=2       x=-1

a={-5,-4,-2,-1}