Question 37
Quadratic EquationsIf c and k are the roots of 6 − x − x2 = 0, find c + k.
- A.2
- B.1
- C.−1
- D.−3
Show the answer and explanation
Answer: C (−1)
Explanation
6 − x − x2 = (2 − x)(3 + x), so the roots are 2 and −3, and c + k = −1.
If c and k are the roots of 6 − x − x2 = 0, find c + k.
Answer: C (−1)
6 − x − x2 = (2 − x)(3 + x), so the roots are 2 and −3, and c + k = −1.