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Dianageorgiana794ask

Răspuns:

C={x∈Z | 5/(x-2)∈ Z}

x+2|5=>x+2 ∈ D5={-5,-1,1,5}

x+2=-5=>x=-7

x+2=-1=>x=-3

x+2=1=>x=-1

x+2=5=>x=3  

C={-7,-3,-1,3}

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