Question

least one head.
22. If a and B be the zeroes of the quadratic polynomial p(x) = 2x2 - kx + 7 since that a2 +B2 -1/2,ab=
23/2. find the value of k


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Answer 1

Answer:

Explaination:

(k – 1)² + kx + 1

One zero is – 3, so it must satisfy the equation and make it zero.

∴ (k- 1) (- 3)² + k(-3) + 1 =0

⇒ 9k – 9 – Ik + 1 = 0

⇒ 6k – 8 = 0

⇒ k = \frac{8}{6} = \frac{4}{3}