Question

The roots of quadratic
equation ax? +bx+c = 0
are equal if *
D > 0
D = 0
D < 0
None of these​

Answer 1

Step-by-step explanation:

d =0 is the correct answer

Answer 2

Answer:

D = 0

Step-by-step explanation:

D = √b²-4ac

If D <0

√-ve integer will exist in complex numbers

If D <0

the roots will be

-b+(+ve) /2a and -b-(+ve) /2a which are two distinct integers

If D = 0

the roots will be

-b+0/2a and b-0/2a

which is equal to

-b/2a