Foundation June 2018 Paper 2 Q7
7.
(a) Simplify \(a + 14a + 8a\). [1]
(b)
Sadie has simplified the following expression.
\(6a + 12b - 4a + 15b\).
Her answer is \(2a - 3b\).
Is she correct?
Yes ☐ No ☐
You must show all your working. [2]
| Scheme | Marks | Comments |
|---|---|---|
| \(23a\) | B1 |
| Scheme | Marks | Comments |
|---|---|---|
| Sight of (\(2a\) +) \(27b\) and states or implies ‘no’. | B2 | B1 for ‘No’ and a partially correct reason e.g. \(2a + kb\) where \(k\) is not \(-3\). This includes ‘\(-27b\)’ |
| (3) |