If c and k are the roots of 6 – x – x2 = 0, find c + k
- 2
- 1
-
-1
- -3
The correct answer is: C
Explanation
6 - x - x2 = 0a = -1; b = -1; c = 6
Sum of roots = c + k = -\(\frac{-b}{a}\)
= \(\frac{-(-1)}{-1}\)
= -1