Хелп логарифм)))))))))))

Question

Хелп логарифм)))))))))))

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Answer 1

Х = 3

log (2)x + log(4)x + log(16)x = log(2)x + 1/2*log (2)x + 1/4*log (2)x = (1 + 1/2 + 1/4)*log (2)x = 7/4*log (2)x
По условию 7/4*log (2)x = 14, откуда log (2)x = 14*4/7 = 8, х = 3.
Ответ: х = 3