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Rezolvati in z ecuatiile
c) ||x+1|-4|=2

Răspuns :

Albatran
|x+1|-4=2

|x+1|=6
x+1=6 .......x=5
x+1=-6...........x=-7


|x+1|-4=-2
|x+1|=2
x+1=2........x=1
x+1=-2........x=-3


S={-7;-3;-1;5}


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