4400 Higher June 2010 Paper 3 Q18
18 Simplify fully \(\dfrac{x^2 + 6x}{x^2 - 36}\)
(3)
| Scheme | Marks |
|---|---|
| \(\dfrac{x(x + 6)}{(x + 6)(x - 6)}\) | B1 |
| B1 | |
| \(\dfrac{x}{x - 6}\) | B1 |
| (3) | |
| (3 marks) |
Notes
B1: for \(x(x + 6)\)
Accept \((x + 0)(x + 6)\)
B1: for \((x + 6)(x - 6)\)
B1: cao