This was one of the tricky questions included in **quadratic questions** pre review (I begin every **A-Math lesson** with pre review so that students can 'show off' their level of understanding in the concepts we're going to discuss. And as I guess it, everyone falls into the 'trap'

**Reasons for students falling into the 'trap'**

- " .... is always positive, oh b^2 - 4ac >0"
**"**for all real values of*x,*so it further supports the fact that b^2 - 4ac >0"

**How to avoid falling into the trap**

Understand the question clearly

- " It is
**THE quadratic graph**which is always positive " - For all real values of
*x*is NOT equal to real roots, it just means for all values of*x*. (No much significance in our solution)

Structure your solution carefully

- Draw (A picture says a thousand words)
- Write down the 2 conclusions
- List your a,b and c
- Solve the inequality

**2008 O level A-Math Quadratic Equations** are also discussed in the video here.

Subscribe (for free) to get your access password.