4400 Higher November 2007 Paper 4 Q2
2
(a) Factorise \(5x - 20\) (1)
(b) Factorise \(y^2 + 6y\) (2)
| Scheme | Marks |
|---|---|
| \(5(x - 4)\) | B1 |
| (1) |
Notes
B1: cao
| Scheme | Marks |
|---|---|
| \(y(y + 6)\) | B2 |
| (2) | |
| (3 marks) |
Notes
B2: B1 for factors, which, when expanded and simplified, give two terms, one of which is correct except \((y + 6)(y - 6)\) and similar
SC B1 for \(y(y + 6y)\)