1MA0 Higher November 2012 Paper 1 Q11
11
(a) Expand \(4(3x + 5)\) (1)
(b) Expand and simplify \(2(x - 4) + 3(x + 5)\) (2)
(c) Expand and simplify \((x + 4)(x + 6)\) (2)
| Answer | Mark | Notes |
|---|---|---|
| \(12x + 20\) | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| \(5x + 7\) | 2 | M1 for \(2 \times x - 2 \times 4\) or \(3 \times x + 3 \times 5\) A1 cao |
| Answer | Mark | Notes |
|---|---|---|
| \(x^2 + 10x + 24\) | 2 | B2 cao (B1 for 4 correct terms with or without signs, or 3 out of no more than 4 terms, with correct signs. The terms may be in an expression or in a table) |