Question

rezolvati ecuatia |2x+1|=1

Answer 1

2x=0
x=0 deoarece 0 impartit la orice numar da 0

Answer 2

2x+1=1/-1
2x=0 /:2
x=0

2x+1=-1/-1
2x=-2/:2
x=-1

x={-1,0}