1. log(1/5) (4x+8)/7 = -2 одз:x>-2
(4x+8)/7=25
4x+8=175
4x=167
x=41,75
3. log(4) x+2= 2log(1/4) 5 -1 одз: x>-2
log(4) (x+2) + log(4) 4 = log(1/4) 25
log(4) (4x+8) = log(4) 1/25
4x+8=1/25
x=-1,99
4.log(x-24) 1024=10 одз: x>24
(x-24)^10 = 1024
x-24=2
x=26