For which of the following values of is the quadratic polynomial NOT factorable over…

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

Problem

For which of the following values of

k

is the quadratic polynomial

x^{2}+7x+k

NOT factorable over the set of integers? (a)

k=10

(b)

k=-8

(c)

k=13

(d)

k=0