Odpowiedź:
[tex]1. \\ 4 \times 2 - 3 = 8 \\ 8 - 3 = 8 \\ 5≠ 8 \\ 2. \\ 2 + 5 \times 3 = 17 \\ 2 + 15 = 17 \\ 17 = 17 \\[/tex]
[tex]3. \\ - 2 + 3 \times 3 = 7 \\ - 2 + 9 = 7 \\ 7 = 7 \\ 4.5 \times 2 - 8 \times 3 = - 1 \\ 10 - 24 = - 1 \\ - 14≠ - 1[/tex]
odp. II, III