The sum and product of the zeroes of a quadratic polynomial are and –3 respectively. What is the quadratic polynomial? About the author Caroline
Answer: If α, β be the zeros of the quadratic polynomial ,then (x−α)(x−β) is the quadratic polynomial. Thus, (x−α)(x−β) is the polynomial =x(square)- ax-βx+αβ =x(square)- x(α_β) +αβ (I) (α+β) = -5 αβ = 3 now using the value of (α+β), αβ in equation (I) we get x(square) – x(-5)+3 =x(square) + 5x+3 hopes it helps you... Reply
Answer:
If α, β be the zeros of the quadratic polynomial ,then
(x−α)(x−β) is the quadratic polynomial.
Thus, (x−α)(x−β) is the polynomial
=x(square)- ax-βx+αβ
=x(square)- x(α_β) +αβ (I)
(α+β) = -5
αβ = 3
now using the value of (α+β), αβ in equation (I) we get
x(square) – x(-5)+3
=x(square) + 5x+3
hopes it helps you...