Question

log8(x в квадрате -4x+3)<1

Answer 1

log8(x^2-4x+3) < log8 8
x^2-4x+3 > 0
D = 16 - 12 = 4
X1 = 3, x2 = 1
(X-3)(x-1) > 0
X-3>0 X-1>0
X>3 X>1
X^2-4x+3<8
X^2-4x-5<0
D = 16-20 = -4 < 0, нет корней