Question

|x-2|+|x–1|+|x +1|+|x+2|>=6

Answer 1

Răspuns:

x>=6

Explicație pas cu pas:

|x-2|+|x–1|+|x +1|+|x+2|>=6

x+2+x-1+x+1+x+2>=6

2x+2-1+2x+1+2>=6

4x+1+3>=6

4x+4>=6

4x>=6-4

4x>=2

x>= 4 : 2

x>=2