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�� (1�3).1. �) (1/3)^x=9; �) 2^(2x-7)=8;�) log(2; x)=3; �) log(1/2; 3x+1)=-2.2. �) 3^(x+1)-3^x=18; �) log(2; x)+log(4; x)=6;�) log(1/3;...

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�� (1�3).

1. �) (1/3)^x=9; �) 2^(2x-7)=8;

�) log(2; x)=3; �) log(1/2; 3x+1)=-2.

2. �) 3^(x+1)-3^x=18; �) log(2; x)+log(4; x)=6;

�) log(1/3; log(3; x))=-1.

3. �) (lg(x))^2-lg(x)=2; �) 3^(2x-3)-8�3^(x-2)=3;

�) log(2; x)-log(x; 4)=3; �) log(2; 5x-1)-3/(log(2; 5x-1)-1)+1=0;

�) 5^x-6�5^(-x)=3,8.

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