t^2-t ≤ 6
t^2-t-6 ≤ 0
D=25
t_(1)=(1-5)/2; t_(2)=(1+5)/2
t_(1)=-2; t_(2)=3
-2 ≤ t ≤ 3
-2 ≤ log_(2)x ≤ 3
-2*log_(2)2 ≤ log_(2)x ≤ 3*log_(2)2
log_(2)2^(-2) ≤ log_(2)x ≤ log_(2)2^(3)
[b]1/4 ≤ x ≤ 8[/b]
целые 1;2;...8
Их восемь
О т в е т. 8