Решите уравнение log2(x-1)+log2x=0,5*log3 9
Log2(x-1)+log2x=0,5*2 log2(x-1)+log2x=log2 2 log2(x(x-1))=log2 2 x^{2} -x=2 x^{2} -x-2=0 x1=-1 x2=2