Log 12 (3) + log 12 (4) = log 12 (3*4) = log 12 (12) = 1
X^3+2x^2+x=x(x^2+2x+1)=x(x+1)^2
x1=0;x2=-1;x3=-1
3log(1/3) log(3)x + log(3)log(3)x = -2 ОДЗ x>0 log3 x >0 x>1
3log(3^-1) log(3)x + log(3)log(3)x = -2
-3log(3) log(3)x + log(3)log(3)x = -2
-2 log(3)log(3)x = -2
log(3)log(3)x = 1
log(3) x = 3
x=3^3=27