Question

please ......fast explanation required​

Answer 1

Answer:

(1) k= +/- 3 (+3 or -3)

Step-by-step explanation:

Hence, given quadratic equation has real and equal roots.

Therefore, the value of discriminant will be zero (0)

i.e

Here,

a=12 , b=4k , c=3

D=0

b^2 - 4ac = 0

(4k)^2 - 4 (12) (3) =0

16k^2 - 4 (36) =0

16k^2 - 144=0

k^2 = 144/16

k^2 = 9

k = √9

k = +/-3 (+3 or -3)

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Answer 2

Answer:

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