Efetue as operações
a) 6.4x10^7-8,1x10^7 =
b) 7,54x10^8-3,7x10^7 =
c) 1,28x10^5+4x10^3 =
d) (2x10^-5)^2 =
e) 10^15x10^-11 =
f) 10^2x10^5 =
a) 6.4x10^7-8,1x10^7 =
b) 7,54x10^8-3,7x10^7 =
c) 1,28x10^5+4x10^3 =
d) (2x10^-5)^2 =
e) 10^15x10^-11 =
f) 10^2x10^5 =
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A
6.4x10^7 - 8,1x10^7 = 24x10^7 - 8,1x10^7 = 15,9x10^7
B
7,54x10^8 - 3,7x10^7 = 7,54x10^8 - 0,37x10^8 = 7,17x10^8
C
1,28x10^5 + 4x10^3 = 128x10^3 + 4x10^3 = 132x10^3
D
(2x10^-5)^2 = 4x10^-10
E
10^15x10^-11 = 10^4
F
10^2x10^5 = 10^7