Question

ax2+bx+c=0 are equal the of C
​

Answer 1

Step-by-step explanation:

Correct option is

D

4a

b

2

For the equation to have equal roots, the discriminant must be equal to zero.

D= b

2

−4ac=0

⇒ b

2

=4ac

⇒ c=

4a

b

2

∴ Option D is correct.

Answer 2

Step-by-step explanation:

For the equation to have equal roots, the discriminant must be equal to zero.

D= b

2

−4ac=0

⇒ b

2

=4ac

⇒ c=

4a

b

2

∴ Option D is correct.