1)-9log 1/32+10^lg^7+lg^8
-8log 10 (1/32)+10×log^7 (log10^8)
-8log10 (2^-5)+10log^7 (log10 (2^3)
-8×(-5log10^2)+10log^7 ^(3log10^(2))
40log10 ^2+10log^7 ^(3log10^2)
2)log 8 (x-2)>log8 (5-x)
log8 (x-2)> log8 (5-x),x €[2,5]
x-2>5-x
x+x>5+2
2x>7
x>7/2,x €[2,5]
x €[7/2;5]