1.__ log0,2 (x-1)=-2
- log 0,2 (x-1) = -2 _ x>1
- x-1 = 0,2 *-2
- x-1 = (1/5) *-2
- x-1= 5*2
- x=25+1
- x=26_ x>=1
- x=26
2. __log7 (3x-29)=2
- log7 (3x-29) =2 _ x>29/3
- 3x-29=7*2
- 3x-29=49
- 3x=49+29
- 3x=78
- x=26 _ x>29/3
- x=26
3.__ log0,5 (2x-4)=-2
4.__ log3 (x2-2x)=1
5. __ log5 (5-3x) =2
6.__ log3 (x+2)≥1
7.__ log7 (9-x)>0
8.__ log0,7 (12x-2) ≥0
9.__ log0,7(8x-23)=0
10.__ 2log2(x-5)+log √2(x+2)=6
11. __1/ lg10x +6/ lg x+5 =1
12.__ logx81x2 X log9√x=3
13. __x log3x-3=81
14. __log2(x-5) ≥3
15. __log3(x2+7x-5)<1
16.__ lg(7x+5)< 1+ lg3
