Question

H.W
If one zeros of the polynomial
(k2 + 12) x2 - 2x -7k is the
reciprocal of the other, find the
value of k.​

Answer 1

Answer:

let the first zero be x then the another one is 1/x

now , alpha × beta = c/a

x × 1/x = 3k/k+4

1 = 3k/k+4

k+4 =3k

4= 2k

therefore, k =2

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