4MA0 Foundation January 2016 Paper 1 Q8
8
(a) Simplify \(5k + 7k - 2k\) (1)
(b) Simplify \(e \times 4 \times g\) (1)
(c) Solve \(6m + 5 = 17\) (2)
(d) Factorise \(15r + 10\) (1)
(e) Simplify \(y^7 \times y^2\) (1)
(f) Expand and simplify \((x + 5)(x - 1)\) (2)
| Scheme | Marks |
|---|---|
| \(10k\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(4eg\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(6m = 17 - 5\) | M1 |
| \(6m = 12\) Answer: 2 | A1 |
| (2) |
| Scheme | Marks |
|---|---|
| \(5(3r + 2)\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(y^9\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(x^2 + 5x - x - 5\) | M1 |
| \(x^2 + 4x - 5\) | A1 |
| (2) |
Notes
M1: for 3 correct terms out of a maximum of 4 terms
or for 4 correct terms ignoring signs
or for \(x^2 + 4x + k\) for any non-zero value of \(k\)
or for … \(+ 4x - 5\)