Условие:

1) log4((x+2)(x+3))+log4(x-2)/(x+3) = 2;

1) log2((x-1)/(x+4))+log2((x-1)(x+3)) = 2;

1) log3(x2)-log3(x/(x+6)) = 3;

1) log2((x+4)/x)+log2(x2) = 2.