Răspuns:
2x+1|50
D50={2,5, 10,25,50}
2x+1=2=>2x=1=>x=1/2 nu convine
2x+1=5=>2x=4=>x=2
2x+1=10=>2x=9=>x=9/2 nu convine
2x+1=25=>2x=24=>x=12
2x+1=50=>2x=49=>x=49/2 nu convine
X={2,12}
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Răspuns:
2x+1|50
D50={2,5, 10,25,50}
2x+1=2=>2x=1=>x=1/2 nu convine
2x+1=5=>2x=4=>x=2
2x+1=10=>2x=9=>x=9/2 nu convine
2x+1=25=>2x=24=>x=12
2x+1=50=>2x=49=>x=49/2 nu convine
X={2,12}