If c and k are the roots of 6 - x - x2 0 find c... - WAEC Mathematics 2009 Question
If c and k are the roots of 6 - x - x2 = 0, find c + k
A
2
B
1
C
-1
D
-3
correct option: c
6 - x - x2 = 0
a = -1; b = -1; c = 6
Sum of roots = c + k = -\(\frac{-b}{a}\)
= \(\frac{-(-1)}{-1}\)
= -1
a = -1; b = -1; c = 6
Sum of roots = c + k = -\(\frac{-b}{a}\)
= \(\frac{-(-1)}{-1}\)
= -1
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