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Răspuns:
12. a)
[tex] {(( - 2) \times (3))} ^{3} = {( - 2)}^{3} \times {3}^{3} =( - 8) \times 27 = - 216[/tex]
b)
[tex] {(3 \times ( - 5))}^{2} = {3}^{2} \times {( - 5)}^{2} = 9 \times 25 = 225[/tex]
c)
[tex] {((2) \times 7)}^{0} = 1[/tex]