Срочно! Заранее спасибо! log по осн.x 2-log по осн.4 X+7/6=0
Log(x)2-log(4)x+7/6=0 1/log(2)x -1/2*log(2)x+7/6=0 6-3(log(2)x)²+7log(2)x=0 log(2)x≠0 log(2)x=a 3a²-7a-6=0 D=49+72=121 a1=(7-11)/6=-2/3⇒log(2)x=-2/3⇒x=1/∛4 a2=(7+11)/6=3⇒log(2)x=3⇒x=8