Question

Determinări numărul natural n ,știind ca 2^n+2^n+2+2^n+1=56

Answer 1

Răspuns:

$\boxed{n=3}$

Explicație pas cu pas:

$2^n+2^{n+2}+2^{n+1}=56\\2^n(1+2^2+2)=56\\2^n=\frac{56}{7} \\2^n=8\\2^n=2^3 \implies \boxed{n=3}$