One of the zeros of the quadratic polynomial is

MATHEMATICS · Single correct · AoPS · Mathematics · Quadratic Equations - Part 1 · Quadratic Equations - Part 1

Problem

One of the zeros of the quadratic polynomial

x^2 + (k-3)x + 2k

-1

. Which of the following gives the correct value of

k

and the factorised form of the polynomial? (a)

k=2,\;(x-1)(x-4)

(b)

k=-4,\;(x+1)(x-8)

(c)

k=4,\;(x-1)(x-8)

(d)

k=-2,\;(x+1)(x-4)