Question

Помогите решить уравнение,пожалуйста!

Answer 1

log22x – log2x – 2= log2x +1;    
log22x – log2x – 2 - log2x – 1=0

log22x – 2log2x – 3= 0;                   log2x=u

u2- 2u – 3=0;                           u1=3;   u2=-1

log2x=3                       log2x=-1

x=8                                x= 0.5