Question

( 5) Scrieți toate numerele naturale divizibile cu 2, de forma:
:
a) 27x; b) 542x; c) 4xx,d) xxx
.​

Answer 1

Răspuns:

a) 27x : 2

x € {0, 2, 4, 6, 8}

27x € {270, 272, 274, 276, 278}

b) 542x : 2

x € {0, 2, 4, 6, 8}

542x € {5420, 5422, 5424, 5426, 5428}

c) 4xx : 2

x € {0, 2, 4, 6, 8}

4xx € {400, 422, 444, 466, 488}

d) xxx : 2

x € {2, 4, 6, 8}

xxx € {222, 444, 666, 888}