4MA0 Foundation January 2017 Paper 2R Q12
12
(a) Simplify \(6e + 8f - 2e + 3f\) (2)
(b) Solve \(7x + 11 = 14\) (2)
(c) Expand \(3(4p + 5)\) (1)
(d) Factorise \(6r + 14\) (1)
| Scheme | Marks |
|---|---|
| \(4e + 11f\) | B2 |
| (2) |
Notes
B2: B1 for \(4e\) or \(11f\)
| Scheme | Marks |
|---|---|
| Eg \(7x = 14 - 11\) or \(7x = 3\) | M1 |
| \(\dfrac{3}{7}\) | A1 |
| (2) |
Notes
M1: For isolating \(7x\) or
for \(7x - 3 = 0\) or
for (14 − 11) ÷ 7
A1: Accept 0.428(5714286....) rounded or truncated to at least 3 SF.
| Scheme | Marks |
|---|---|
| \(12p + 15\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(2(3r + 7)\) | B1 |
| (1) | |
| (6 marks) |