Răspuns :
[tex]90 = 3 \times 3 \times 10 \\ 64 = 4 \times 2 \times 8 \\ 81 = 9 \times 3 \times 3 \\ 48 = 2 \times 4 \times 6[/tex]
[tex]90 = 3 \times 3 \times 10 \\ 64 = 4 \times 2 \times 8 \\ 81 = 9 \times 3 \times 3 \\ 48 = 2 \times 4 \times 6[/tex]