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These answers are given merely to help in working through the paper at home. In order to get full marks all working out must be shown.
Questions 1 - 5 | 6 - 10 | 11 - 15 | 16 - 20 | 21
| 16 | Proof | ||
| 17 | a) | (x − 5)2 + 7 | |
| b) | i) | | |
| ii) | | ||
| c) | | ||
| 18 | Proof | ||
| 19 | 8 cm | ||
| 20 | x = 3 or −1 | ||