Question

Dacă (2x+3) |6 si ce, atunci x e =

Answer 1

2x+3|D6=>2x+3|1,2,3,6=>1.2x+3=1=>2x=-2=>x=-1
2.2x+3=2=>2x=-1=>x=-1 supra 2
3.2x+3=3=>x=0
4.2x+3=6=>x=3 supra 2
S={-1;-1 supra 2;0;3 supra 2}