Foundation June 2017 Paper 2 Q5
5
(a) Multiply out.\[3x(x + 2y)\]
[2]
(b) Solve.
(i) \(7x = 28\) [1]
(ii) \(\dfrac{x}{3} - 2 = 9\) [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(3x^2 + 6xy\) final answer | 2 | B1 for \(3x^2\) or \(6xy\) seen | Condone \(6yx\) Do not accept eg \(6 \times x \times y\) |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| (i) 4 | 1 | ||
| (ii) 33 | 2 | M1 for \(\dfrac{x}{3} = 9 + 2\) or better or M1 for \(x = a \times b\) following \(\dfrac{x}{b} = a\) | Alternative method M1 for \(x - 6 = 27\) or M1 for \(x = a + b\) following \(x - a = b\) |