Răspuns:
3. a)
[tex] {5}^{2} + {3}^{4} - {2}^{5 } \\ 25 + 81 - 32 \\ 106 - 32 = 74[/tex]
b)
[tex]3 \times {7}^{2} - {2}^{4} \\ 3 \times 49 - 16 \\ 147 - 16 = 131[/tex]
c)
[tex]3 \times {2}^{6} + 2 \times {9}^{2} \\ 3 \times 64 + 2 \times 81 \\ 192 + 162 = 354[/tex]
