Question

Решите неравенство. (5-3х)(х-1) < -1

Answer 1

(5-3х)(х-1) < -1
-3x^2+8x-5+1<-1
-3x^2+8x-4<0
D=8^2=4(3*4)=16
x₁=$\frac{2}{3}$
x₂=2
x∈(-∞, 2/3)⋃(2, ∞)