4MA0 Foundation June 2014 Paper 1R Q14
14
(a) Simplify \(2a - 5b + 3a - 4b + a\) (2)
(b) Factorise \(7dg - 9de\) (2)
(c) Expand and simplify \((x + 2)(x + 5)\) (2)
| Scheme | Marks |
|---|---|
| \(6a - 9b\) | B1 B1 |
| (2) |
Notes
B1 B1: for \(6a\)
for \(-9b\)
| Scheme | Marks |
|---|---|
| \(d(7g - 9e)\) | B2 |
| (2) |
Notes
B2: Award B1 for \(d\)(sum or difference of any other two terms not including \(d\) which when multiplied out would give one term correct)
| Scheme | Marks |
|---|---|
| \(x^2 + 2x + 5x + 10\) | M1 |
| \(x^2 + 7x + 10\) | A1 |
| (2) | |
| (Total 6 marks) |
Notes
M1: For 3 correct terms out of a maximum of 4
Or for 4 correct terms ignoring signs
Or for \(x^2 + 7x + k\) for any non-zero value of \(k\)
Or for \(\ldots + 7x + 10\)
A1: cao