Discriminant and Nature of Roots

Question

What is the discriminant of the equation $ x^2 - 2x + 5 = 0 $, and what does it indicate about the nature of its roots?

Accepted Answer

$ -16 $, indicating two complex roots

Answer

$ 4 $, indicating two real roots

Answer

$ 25 $, indicating two real roots

Answer

$ 0 $, indicating one real root