log 2 x + log 4 x + log8 x = 11
log2 x +log2 x^(1/2) + log2 x^(1/3) = log2 (2^11)
log2 (x* x^(1/2)* x^(1/3)) = log2 (2^11)
log2 x^(11/6)= log2 (2^11)
x^(11/6) = 2^11
(x^(1/6))^11 = 2^11
x^(1/6) = 2
x^(1/6) = 64^(1/6)
x=64
ОТВЕТ x=64
log 2 x + log 4 x + log8 x = 11
log2 x +log2 x^(1/2) + log2 x^(1/3) = log2 (2^11)
log2 (x* x^(1/2)* x^(1/3)) = log2 (2^11)
log2 x^(11/6)= log2 (2^11)
x^(11/6) = 2^11
(x^(1/6))^11 = 2^11
x^(1/6) = 2
x^(1/6) = 64^(1/6)
x=64
ОТВЕТ x=64