Question

Помогите. Вычислите
(-3)²+($\frac{1}{3}$)² · 3³

Answer 1

$\displaystyle \tt (-3)^{2}+\bigg(\frac{1}{3}\bigg)^{2}\cdot3^{3}=9+3^{-2+3}=9+3=12;$

Answer 2

$(-3)^2+(\frac{1}{3})^{2}*3^3=3^2+(3^{-1})^{2}*3^3=9+3^{-2}*3^3=\\\\=9+3^{-2+3}=9+3^{1}=9+3=12$