Question

URGENTEEEEE SOCORROOO ALGUÉM ME AJUDAA. PRFVR , PRECISO DOS CÁLCULOS PFVR​

Answer 1

Resposta:

a)

$7^9*7^{-6}=7^{9-6}=7^3=343$

b)

$10^{-9}*10^1*10^5=10^{-9+1+5}=10^{-3}=0,001$

c)

$8^3*8^{-6}=8^{3-6}=8^{-3}=0,001953$

d)

$x^3*x^{-5}*x^4=x^{3-5+4}=x^2$

e)

$a^8*a^{-8}*a^{-1}=a^{8-8-1}=a^{-1}=\frac{1}{a}$

f)

$\frac{6^4}{6^5} =6^{4-5}=6^{-1}=\frac{1}{6} =0,167$

g)

$\frac{2^7}{2^{-2}} =2^{7-(-2)}=2^{7+2}=2^9=512$

Valeu!