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a)
2^3/2^2 + 3^0
2^(3-2) + 1
2^1 + 1 = 3
c)
10^(8-5) - 5^(6-3)
=10^3 - 5^3
=2^3 × 5^3 - 5^3
=5^3(2^3 - 1)
=125(8-1)
=125×7
=875
e)
7^(7-5) - 5^(9-7)
7^2 - 5^2
=49-25
=24
De similar forma se resuelve los ejercicios restantes.