The discriminant of equation x2+6x+5=0 is

Question

The discriminant of equation x²+6x+5=0 is

(a) 4

(b) 2

(c) -16

(d) 16

Answer 1

Correct option is (d) 16

Explanation:

Here a = 1, b = 6, c = 5

Discriminant (D) = b² - 4ac

                            = 6² - 4.1.5

                            = 36 - 20

                            = 16

The discriminant of equation x²+6x+5=0 is 16.