Higher November 2020 Paper 5 Q14
14 Simplify.
(a) \(4a^{\frac{1}{2}} \times 3a^2\) [2]
(b) \(\left(\dfrac{2a^2}{a^{-3}}\right)^3\) [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(12a^{\frac{5}{2}}\) oe final answer | 2 | B1 for \(ka^{\frac{5}{2}}\) oe or \(12a^k\) (\(k \ne 0\)) | For B1 accept \(12a\) |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(8a^{15}\) final answer | 3 | B2 for \(8a^5\) or \(\frac{8a^6}{a^{-9}}\) or \(ka^{15}\) (\(k \ne 0\)) or B1 for \(ka^5\) or \(\frac{ka^6}{a^{-9}}\) or 8 seen (\(k \ne 0\)) | |