Question

Which of the following is the discriminant of the polynomial below x^2+4x+5

Answer 1

`\huge\boxed{\sf Discriminant = -4}`

Explanation:

Comparing it with quadratic equation
`ax^2 + bx + c = 0`, we get:

a = 1 . b = 4 and c = 5

So,

Discriminant =
`b^2-4ac`

D = (4)²-4(1)(5)

D = 16 - 20

D = -4

Hence,

Discriminant = -4

`\rule[225]{225}{2}`

Hope this helped!

~AH1807