Question

Rezolvati ecuatia pe pasi :
$2^{ \frac{x}{2} } - 2^{ \frac{x-4}{4} }-14=0$
Multumesc anticipat.

Answer 1

[tex]{2^{(x/4)}}^2-2^{x/4}/2-14=0\\ Notam2^{x/4}=t\\ t^2-t/2-14=0\\ 2t^2-t-28=0\\ t=-7/2\ si\  t=4\\ 2^{x/4}=2^2\\ x/4=2\\ x=8 [/tex]