log x 4 = 1/3;
x=4³=64;
б) lg x = 1/2 lg 9 - 2/3 lg 8
lg x = lg3-lg4;
lg x = lg(3/4);
x = 3/4;
<span>3x^2+x=0</span>x(3x+1)=0x=0 или 3x+1=0 3x=-1 x=-1/3Ответ:0;-1/3