Question 8
PolynomialsIf the solution set of x2 + kx − 5 = 0 is {−1, 5}, find the value of k.
- A.−6
- B.−4
- C.4
- D.5
Show the answer and explanation
Answer: B (−4)
Explanation
Sum of roots = −k = 4, so k = −4.
If the solution set of x2 + kx − 5 = 0 is {−1, 5}, find the value of k.
Answer: B (−4)
Sum of roots = −k = 4, so k = −4.