Question 5
PolynomialsIf f(x) = 3x3 + 8x2 + 6x + k, and f(2) = 1, find the value of k.
- A.−67
- B.−61
- C.61
- D.67
Show the answer and explanation
Answer: A (−67)
Explanation
f(2) = 24 + 32 + 12 + k = 68 + k = 1, so k = −67.
If f(x) = 3x3 + 8x2 + 6x + k, and f(2) = 1, find the value of k.
Answer: A (−67)
f(2) = 24 + 32 + 12 + k = 68 + k = 1, so k = −67.