mmb1

Verified answer

2*log²(2) x - 9*log(2) x + 4 = 0
ОДЗ x>0
log(2) x =  t
2t² - 9t + 4 = 0
D=9² - 4*2*4 = 81 - 32 = 49 = 7²
t12 = (9+-7)/4 = 4   1/2
t1=1/2
log(2) x = 1/2
x=√2
t2=4
log(2) x = 4
x=16
ответ √2, 16√