Question

[(14 la puterea a 2 a - 13 la puterea a 2 a) : 27 - 3 la puterea 0] × 2 la puterea a 2 a

Answer 1

$\frac{14^2-13^2}{\left(27-3\right)^0\cdot \:2^2}=\frac{14^2-13^2}{2^2\cdot \:1}=\frac{27}{2^2\cdot \:1}=\frac{27}{2^2}=\frac{27}{4}$