Question

|2x-1|<5 repede va rog am mare nevoie

Answer 1

| 2x - 1 | < 5     

avem posibilitatile: 

I .  -(2x-1) < 5  ...  -2x+1 < 5

                                 -2x < 4  | *(-1)

                                 2x > -4 => x > -2 ;

II.   +(2x+1) < 5 ...  2x < 4    = > x < 2 ; 

                  R:  x ∈ ( -2 ; +2 ) .