Question

Помогите вычислить!(под в)

Answer 1

$(1- frac{4}{27}*(-3)^2)^3 = \ (1- frac{4}{27}*9)^3 = \ (1- frac{4*9}{27})^3 = \ ( frac{27}{27} - frac{36}{27})^3 = \ ( frac{27-36}{27})^3 = \ (frac{-9}{27})^3= -1/3^3= -frac{1}{27}$