Question

решите уравнение lg 2x =lg 100x

Answer 1

$lg2x=lg100x; ; ; ; ODZ:; ; left { {{2x textgreater 0} atop {100x textgreater 0}} right. ; to ; x textgreater 0\\2x=100x\\100x-2x=0\\98x=0\\x=0notin ODZ\\Otvet:; net; reshenij$