Question

Produsul a doua numere este 18. Afla toate variantele

Answer 1

A=2,3,6,8,1,18,9
b-9,6,3,2,18,1,2
P=2×9
=6×3
=3×6
=2×8
=8×2
18×1
1×18
9×2

Answer 2

Divizorii  lui 18- 1; 2; 3; 6; 18

=> 18:1=18
      18:2=9
      18:3=6
      18:6=3
      18:18=1

X·Y=18

⇒x∈{1,2,3,6,9,18}
   y∈{1,2,3,6,9,18}