Question

Discriminant to determine the nature of the roots of x2 + 2x + 5 = 0.

a) No real roots
b) One real root
c) Two distinct real roots

Answer 1

discrimant = b^2 - 4ac = 2^2 - (4 x 1 x 5) = 4 - 20 = -16
Therefore, there is no real roots.