Question

a) (-8)^5 × (-8) × (-8)^3?
b) [(-2)^6]^2?
c) (-10)^9 : (-10)^6?
d) (+9) × (+9)^11 × (+9)^8?
e) (-13)^20 : (-13)^14?

Me ajudem

OBS: Quem responder coloca a conta pf!​

Answer 1

Explicação passo-a-passo:

a)

$\sf (-8)^5\cdot(-8)\cdot(-8)^3=(-8)^{5+1+3}=(-8)^9$

b)

$\sf [(-2)^6]^2=(-2)^{6\cdot2}=(-2)^{12}$

c)

$\sf (-10)^9\div(-10)^6=(-10)^{9-6}=(-10)^3$

d)

$\sf (+9)\cdot(+9)^{11}\cdot(+9)^8=(+9)^{1+11+8}=(+9)^{20}$

e)

$\sf (-13)^{20}\div(-13)^{14}=(-13)^{20-14}=(-13)^6$