Question

Calcule ultilizando as propriedades das potências a) x^-4×x^2×x^-3 b) b^2m/b c)(2^3)^4

Answer 1

$a)\\\\x^{-4}~.~x^2~.~x^{-3}~=~x^{(-4)+2+(-3)}~=~\boxed{x^{-5}~~ou~~\frac{1}{x^5}}\\\\\\b)\\\\\frac{b^{2m}}{b}~=~\frac{b^{2m}}{b^1}~=~\boxed{b^{2m-1}}\\\\\\c)\\\\\left(2^3\right)^4~=~2^{\,3~.~4}~=~\boxed{2^{12}}$