Question

Dados a=(10² x 10)^7 : (10^4)^5 e b=[4^7 x 4^10 x 4]² : (4^5)^7 , o valor da soma a+b é : 

Answer 1

Olá, Amandex.

 

$<var>a=(10^2 \times 10)^7 : (10^4)^5 =10^{(2+1)\times 7}:10^{4\times 5}=10^{21-20}=10\\\\ b=(4^7 \times 4^{10} \times 4)^2 : (4^5)^7 = 4^{(7+10+1)\times 2}:4^{5\times 7}=4^{36}:4^{35}=$

$4^{36-35}=4</var>$

 

Portanto:

 

$<var>a+b=10+4=14</var>$