Question

3) Aplicando as propriedades da potenciação calcule o valor da expressão numéricas

A) (2⁹×-2¹¹×2³)=

B) [(0,4)²]¹⁰÷[(0,4)⁴×(0,4)⁷×(0,4)]=



**********Urgente*********​

Answer 1

Resposta:

$a) -2^{23} \\\\\b) (\frac{2}{5})^{8}$

Explicação passo a passo:

$A)\\\\(2^{9} . (-2)^{11} . 2^{3}) \\(-2^{11}) . 2^{12}\\(-2)^{23}\\\\\\B)\\\\\\\frac{ ((\frac{2}{5})^{2})^{10}}{(\frac{2}{5})^{4} . (\frac{2}{5})^{7} . \frac{2}{5} }\\\\\\\\\frac{(\frac{2}{5})^{20}}{(\frac{2}{5})^{12} } \\ \\(\frac{2}{5})^{8}$