Question

M={x aparține Z||x+1|} Va rog repede! ​

Answer 1

| x+1 | </ 3

x +1 </ 3, x </ 2  sau

x+1 </ -3, x</ -4

x apartine [-4, 2] deci M={-4, -3, -2, -1, 0, 1,2}