if alpha and beta are the zeros of the polynomial 2x2-x + k satisfy the relation 3alpha + 3beta + alpha × beta = 0 then find (a) the value of k (b) zeroes of p ( x )
Answers
Answered by
5
Answer:
2-x + k
α+β = -(-1)/2 = 1/2
αβ = k/2
⇒3α+3β+αβ=0
⇒3(α+β)+αβ=0
⇒3(1/2)+k/2=0
⇒ k = -3
Similar questions