Algebraeasy · Past Paper
If α, β are roots of x^2 + x + 1 = 0, find α + β.
A-1
B1
C0
D2
✓ Correct Answer: A — -1
Sum of roots = -b/a = -1/1 = -1.
Share this question
More from Algebra
- Solve: 3x + 4 = x + 10
- If the length of a rectangle is reduced by 5 units and breadth is increased by 3 units, the area is reduced by 9 sq units. If we increase length by 3 and breadth by 2, area increases by 67. Find length.
- If 1/x + 2/y = 4 and 3/x - 1/y = 5, find x.
- Factorize x^2 - 1/x^2 - 4(x - 1/x).
- Which of the following has real and equal roots?