Question

Найдите значение выражения.
1)
$3000 times (0.2) { }^{3} - ( - 2) {}^{6}$
2)
$frac{1.6}{(0.4) {}^{2} } - ( - 3) {}^{3}$

Answer 1

$1. 3000 cdot (0,2)^3 - (-2)^6 = 3 cdot 10^3 cdot (2 cdot 10^-^1)^3 - 64 = \ = 3 cdot 10^3 cdot 2^3 cdot 10^-^3 - 64 = 3 cdot 8 - 64 = -40 \ 2. frac{1,6}{(0,4)^2} - (-3)^3 = frac{1,6}{0,16} - 27 = 10 - 27 =-17$