1MA0 Higher November 2013 Paper 2 Q21
21
(a) Factorise \(4x^2 - 9\) (1)
(b) Make \(m\) the subject of \[g - 3m = am + 5\] (3)
| Answer | Mark | Notes |
|---|---|---|
| \((2x + 3)(2x - 3)\) | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| \(m = \dfrac{g - 5}{a + 3}\) | 3 | M1 for correct processes to isolate terms in \(m\) from other terms M1 for taking \(m\) out as a common factor A1 for \(m = \dfrac{g - 5}{a + 3}\) or \(m = \dfrac{5 - g}{-a - 3}\) |