C1 Ex3E Q4
- Author:
- mathsurgery.wikispaces
- Topic:
- Inequalities
For which values of does the equation have real roots?
More detail and related questions at http://mathsurgery.wikispaces.com/C1+chapter+3+-+equations+and+inequalities
Think about the discriminant:
b^2 - 4ac must be greater than or equal to zero for real roots.