Question

d = b² -4ac ...when descriminant is greater than zero then x= -b±√D/2a...
When descriminant is equal to zero then x= ??​

Answer 1

Answer:

-b/2a

Step-by-step explanation:

Because D will be 0 for equal roots and root 0 is 0

Answer 2

Answer:

If discriminant equal to 0,

Then b^2-4ac = 0

So x = b/2a, -b/2a i.e, equal roots