Решите log2(14х) = log2(7) + 2
Log₂14x=log₂7 +2 log₂14x=log₂7 +2log₂2 log₂14x=log₂7 +log₂4 log₂14x=log₂(7 ·4) 14x=7·4 14x=28 x=28:14 x=2