2 log 0,5( log2 x)+log2 (log2 x) = -1
-2log(2)(log(2)x)+log(2)(log(2)x)=-1 -log(2)(log(2)x)=-1 log(2)(log(2)x)=1 log(2)x=2 x=4
Большое спасибо) !!!