Question

3 la puterea a doua totul la puterea n plus 2 este egal cu 3 la puterea n ori 3 la puterea 8 o​

Answer 1

Răspuns:

(3^2)^n=3^n*3^8

=>3^2n=3^n+8

=>2n=n+8=>n=8

Answer 2

$\it (3^2)^{n+2}=3^n\cdot3^8 \Rightarrow 3^{2n+4}=3^{n+8} \Rightarrow 2n+4=n+8 \Rightarrow n=4$