log√3 9-log2 (x+4)=1
4-log2 (x+4)=1
3=log2 (x+4)
х+4=2*2*2
х=4
(х+у^2)^2 -у^2 ×(у^2 +2)-2ху^2=х^2 +2ху^2 +у^4 -у^4 -2у^2 -2ху^2=х^2 -2у^2