Resposta:
a)5^7 * 5^4 = 5^7^+^4 = 5^1^1
b)3^5 * 3^3 = 3^5^+^3 = 3^8
c)7^4*7^2 = 7^4^+^2=7^6
d)5^7 : 5^4 = 5^7^-^4 = 5^3
e)3^5 : 3^3 = 3^5^-^3 = 3^2
f)7^4 : 7^2 = 7^4^-^2 = 7^2
g)(2*5)^2=2^2*5^2(2∗5)
2
=2
2
∗5
2
h)(10:5)^3 = 10^3:5^3(10:5)
3
=10
3
:5
3
