Foundation June 2022 Paper 2R Q9
9
(a) Simplify \(a \times a \times a \times a \times a\) (1)
(b) Simplify \(8b \times 3c\) (1)
(c) Expand \(3(x + 4)\) (1)
\(Q = 5v^2 - w\)
(d) Work out the value of \(Q\) when \(v = \dfrac{1}{2}\) and \(w = \dfrac{1}{4}\) (2)
| Scheme | Marks |
|---|---|
| \(a^5\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(24bc\) | B1 |
| (1) |
Notes
B1: oe
| Scheme | Marks |
|---|---|
| \(3x + 12\) | B1 |
| (1) |
Notes
B1: or \(12 + 3x\)
| Scheme | Marks |
|---|---|
e.g. \(5 \times \left(\dfrac{1}{2}\right)^2 - \dfrac{1}{4}\) or \(5 \times (0.5)^2 - 0.25\) oe or \(5 \times \dfrac{1}{4} - \dfrac{1}{4}\) oe or \(5 \times 0.25 - 0.25\) oe | M1 |
| 1 | A1 |
| (2) | |
| (5 marks) |
Notes
M1: for substituting values for \(v\) and \(w\)
A1: oe e.g. \(\dfrac{4}{4}\)