Notes for 14/3 BY JOVAN

- Use 'discriminant' instead of b^2 - 4ac.

- Question may use terms a, b or c 

- Thus b^2 - 4ac will not equate to the discriminant

- Negative inequalities have to be flipped when both sides are multiplied by negative (exception)

- When question ask for 'show that'

- Find discriminant expression

- Find a range that the discriminant always satisfies

- Link back to question (write 'shown')

- Notes for question 12b

- Expression of discriminant

- Find range of discriminant that is always true

- Link back to question and copy the right question

- Find the range of values by determining the condition of the roots