Foundation June 2023 Paper 2 Q23
23
(a) Factorise \(x^2 + 10x + 24\). [2]
(b) Write down the solutions to \(x^2 + 10x + 24 = 0\). [1]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \((x + 6)(x + 4)\) final answer | 2 | M1 for \((x + a)(x + b)\) where \(a + b = 10\) or \(ab = 24\) or for \(x(x + 4) + 6(x + 4)\) or \(x(x + 6) + 4(x + 6)\) | Condone \((x + 6)(x + 4) = 0\) and \((x + 6)(x + 4) = y\) for 2 marks |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(-6\) and \(-4\) | 1 | FT their (a) dep on two brackets | Allow correct solutions if part (a) incorrect |