Question

Va rog foarte mult
Rezolvati in R ecuatia
|x+1|=2

Answer 1

|x+1|=2
Daca x>1
=> x+1=2=>x=1
daca 1>x
=>1-x=2=>x=2-1=1
===> x={1}

Answer 2

|x+1|=2=>x+1=2-> x=1 SI x+1=-2-> x= -3 => X apartine { 1,-3 }