4400 Higher November 2007 Paper 3 Q16
16 Simplify
(a) \(\dfrac{x^2 - 3x}{2x - 6}\) (3)
(b) \(\dfrac{2}{x - 1} - \dfrac{3}{x}\) (3)
| Scheme | Marks |
|---|---|
| \(x(x - 3)\), \(2(x - 3)\) | M1M1 |
| \(\frac{x}{2}\) | A1 |
| (3) |
| Scheme | Marks |
|---|---|
| \(2x - 3(x - 1)\) or \(2x - 3x + 3\) oe | M1 |
| \((x - 1)x\) or \(x^2 - x\) | M1 |
| \(\dfrac{3 - x}{x(x - 1)}\) or \(\dfrac{3 - x}{x^2 - x}\) | A1 |
| (3) | |
| (6 marks) |
Notes
M1: in denom