log2(x)*log2(x)-4log2(x)+3=0
log2(x)=3 x=8
log2(x)=1 x=2
LOG₂ ² X – LOG₂ X⁴ + 3 = 0
LOG₂ ² X – 4LOG₂ X + 3 = 0
Пусть LOG₂ X = t, тогда
t² - 4t +3 = 0
t1 = 1, t2=3
LOG₂ X = 1 или LOG₂ X = 3
x = 2 x = 2^3
x = 8
