Question

escreva na forma de potencia de mesma basa
(7⁴ₓ7³ₓ7)⁻¹÷7⁴=
(b⁴÷b²ₓb³)=
2³÷2⁻⁵=
(4⁵)³=

Answer 1

$(7 {}^{4} \times 7 {}^{3} \times 7) {}^{ - 1} \div 7 {}^{4}$
$(7 {}^{8} ) {}^{ - 1} \div 7 {}^{4}$
$7 {}^{ - 8} \div 7 {}^{4}$
$7 {}^{ - 12}$

$(b {}^{4} \div b {}^{2} \times b {}^{3} )$
$b {}^{4} \times b {}^{ - 2} \times b {}^{3}$
$b {}^{4 - 2 + 3}$
$b {}^{5}$

$2 {}^{3} \div 2 {}^{ - 5}$
$2 {}^{3 + 5}$
$2 {}^{8}$

$2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2$
$256$
$(4 {}^{5} ) {}^{3}$
$4 {}^{5 \times 3}$
$4 {}^{15}$