Question

Oblicz x :
* log √3-x z 0,25 =-2

*log|x-1| z 27=3

Answer 1

Log √3-x z 0,25 = -2
(√3-x)^-2 = 0,25
(√3-x)^-2 = 2^-2
√3-x = 2
x = √3 -2

log|x-1| z 27 = 3
(|x-1|)³ = 27
(|x-1|)³ = 3³
|x-1| = 3
x₁ = 4
x₂ = -2