##
4) What is the value of discriminant for the quadratic equation X2 – 2X – 3

= 0?

A) -16. B) 16 C) 8 D

Question

4) What is the value of discriminant for the quadratic equation X2 – 2X – 3

= 0?

A) -16. B) 16 C) 8 D) 4

in progress
0

Mathematics
3 months
2021-07-24T13:56:53+00:00
2021-07-24T13:56:53+00:00 1 Answers
0 views
0
## Answers ( )

Answer:option (B) 16

Step-by-step explanation:Given:The quadratic equation : x² – 2x – 3

Tofind:the value of discriminant

Solution:For the quadratic equation of the form ax² + bx + c, the value of discriminant is given by

D = b² – 4acFor the given Quadratic equation,

a = 1

b = –2

c = –3

Discriminant, D = (–2)² – 4(1)(–3)

D = 4 + 12

D = 16

Therefore,

correct option is (B)________________________

#Know more :

D > 0 ; the quadratic equation has real and distinct roots

D = 0 ; the quadratic equation has real and equal roots

D < 0 ; the quadratic equation has complex roots