Find quadratic polynomial whose zeroes are :
Let the zeroes of the quadratic polynomial be
Then,
Sum of zeroes = α + β = 2
Product of zeroes = =
Then, the quadratic polynomial
= x2 – (sum of zeroes)x + product of zeroes
=
=
=
We can consider 4x2 – 8x – 1 as required quadratic polynomial because it will also satisfy the given conditions.