4MA0 Foundation January 2013 Paper 2 Q23
23
(a) Expand and simplify \(\quad 3(2x - 5) - 4(x + 3)\) (2)
(b) Expand and simplify \(\quad (y + 7)(y + 2)\) (2)
| Scheme | Marks |
|---|---|
| \(6x - 15 - 4x - 12\) | M1 |
| \(2x - 27\) | A1 |
| (2) |
Notes
M1: for 3 correct terms
A1: cao
| Scheme | Marks |
|---|---|
| \(y^2 + 2y + 7y + 14\) | M1 |
| \(y^2 + 9y + 14\) | A1 |
| (2) |
Notes
M1: for 3 correct terms out of 4 or for 4 correct terms ignoring signs or for \(y^2 + 9y + c\) for any non-zero value of \(c\) or for … \(+ 9y + 14\)
A1: cao