Question

O valor da expressão 5 . 10⁸ . 4 10⁻³ é:

Answer 1

Oie, tudo bom?

$= 5 \: . \: 10 {}^{8} \: . \: 4 \: . \: 10 {}^{ - 3}$

$= 20 \: . \: 10 {}^{8} \: . \: 10 {}^{ - 3}$

$= 20 \: . \: 10 {}^{8 + ( - 3)}$

$= 20 \: . \: 10 {}^{8 - 3}$

$= 20 \: . \: 10 {}^{5}$

$= 2 \: . \: 10 {}^{1} \: . \: 10 {}^{5}$

$= 2 \: . \: 10 {}^{1 + 5}$

$\boxed{ = 2 \: . \: 1 0{}^{6} }$

Att. NLE Top Shotta