4MA0 Foundation January 2015 Paper 1R Q8
8
(a) Solve \(\;x + 4 = 17\) (1)
(b) Simplify \(\;4e + 6f + 3e - 2f\) (2)
(c) Factorise \(\;6w + 15\) (1)
(d) Expand and simplify \(\;(x + 4)(x + 7)\) (2)
| Scheme | Marks |
|---|---|
| 13 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(7e + 4f\) | B2 |
| (2) |
Notes
B2: B1 for \(7e\) or \(4f\)
| Scheme | Marks |
|---|---|
| \(3(2w + 5)\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(x^2 + 4x + 7x + 28\) | M1 |
| \(x^2 + 11x + 28\) | A1 |
| (2) | |
| (6 marks) |
Notes
M1: for 3 correct terms out of 4 or for 4 correct terms ignoring signs
or for \(x^2 + 11x + c\) for any non-zero value of \(c\)
or for ... \(+ 11x + 28\)