Question 14
PolynomialsFind the value of k if y − 1 is a factor of y3 + 4y2 + ky − 6.
- A.0
- B.−6
- C.−4
- D.1
Show the answer and explanation
Answer: D (1)
Explanation
If y − 1 is a factor, putting y = 1 gives zero: 1 + 4 + k − 6 = 0, so k = 1.
Find the value of k if y − 1 is a factor of y3 + 4y2 + ky − 6.
Answer: D (1)
If y − 1 is a factor, putting y = 1 gives zero: 1 + 4 + k − 6 = 0, so k = 1.