Question

tennetiraj86 please answer this question I will Mark you brainlist​

Answer 1

Answer:

☆●Hello mate ,

☆●Here is your answer to the question.

1) x^2+kx-21 on "3"

3^3+3k-21=0

9+3k=-21

3k=-21-9

3k = -30

k= -30/3

k= -10.

Therefore the value of k for first question is -10.

2) x^2+kx-5 On '1'

1^2+k-5=0

1+k-5=0

1-5+k=0

-4+k=0

k=4.

Therefore the value of k for second question is 4 .

3)x^2+12k+k=0 on "-5"

(-5)^2+12 (-5)+k=0

-35+k=0

k = 35.

Therefore the value of k for third question is 35.

Hope it helps u mate.

Mark it as BRAINLIEAST please i request.

Thank you.