Higher November 2020 Paper 3 Q10
10 Expand and simplify fully \(\quad 4(2c + 3) - (5c - 1)\) [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(8c + 12\) or \(-5c + 1\) | M1 | may be seen in a grid implied by \(3c + 12 + 1\) or \(8c + 13 - 5c\) |
| \(3c + 13\) | A1 |
Additional guidance
| Do not ignore further working eg \(3c + 13 = 16c\) eg \(3c + 13\), \(c = \dfrac{-13}{3}\) | M1A0 M1A0 |
| \(8c + 12 - 5c - 1\) | M1 |
| \(8c + 3 - 5c + 1\) | M1 |