Question

find value of k if equation 3x²+4x+k=0
1)roots will be real and equal
2)roots will be real and distinct
3)roots will be unequal ​

Answer 1

Answer:

Discriminant = b^2 - 4ac

D = 4^2 - 4×3×k

D = 16 - 12k

case 1 : For equal and real roots

D = 0

16 - 12k = 0

k = 4/3

case 2 : For distinct and real roots

D > 0

16 - 12k > 0

- 12k > - 16

k< 4/3

case 3 : For unreal roots

D < 0

16 - 12k < 0

- 12k < - 16

k> 4/3

Answer 2

Answer:

this is correct......................