Flashcards
Polynomials Extra sums
Cards in this deck (4)
- 1If the sum of zeroes of the quadratic polynomial 3x 2 – kx + 6 is 3, then find the value of k. (2012)Sum of the zeroes = 3 ---( 1 )
- b / a = 3
- ( - k ) / 3 = 3
k / 3 = 3
k = 9 - 2If α and β are the zeroes of the polynomial ax 2 + bx + c, find the value of α 2 + β 2 . (2013)Value of α2+ β2.
- 3If the sum of the zeroes of the polynomial p(x) = (k 2 – 14) x 2 – 2x – 12 is 1, then find the value of k. (2017 D)The values of k are -4 and 4
Step-by-step explanation:
The given polynomial is
The sum of zeros of a quadratic equation is
Hence, the sum of the zeros of the given quadratic is - 4If α and β are the zeroes of a polynomial such that α + β = -6 and αβ = 5, then find the polynomial. (2016 D)
Information
- Description
- X Mathematics Flashcards on Polynomials Extra sums, created by Tamanna Bhalla on 06/05/2021.
- Created by
- Tamanna Bhalla
- Views
- 2
- Rating