1.

If one of the roots of the quadratic equation x2 + x + k = 0 is – 2, then what is the value of k ? (A) 2 (B) – 2 (C) – 3 (D) 0

Answer»

The correct option (B) – 2

Explanation.

If – 2 is a root of this equation then 

(– 2)2 + (– 2) + k = 0 

4 – 2 + k = 0 

k = – 2



Discussion

No Comment Found

Related InterviewSolutions