Question

2xквадрате-3x+1 больше 0

Answer 1

2x^2-3x+1>0

2x^2-3x+1=0

D=9-8=1

x=(3+1)/4=1

x=(3-1)/4=1/2

(x-1)(x-1/2)>0

x∈(-∞, 1/2)⋃(1, ∞)