Links to other Year 9 Revision exercises - Ex 1.1 | Ex 1.2 | Ex 1.3 | Ex 1.4 | Ex 1.5 | Ex 1.7 | Ex 2.1 | Ex 2.2 | Ex 2.3 | Ex 2.4 | Ex 3.1 | Ex 3.2 | Ex 3.3 | Ex 3.4 | Ex 3.5 | Ex 4.1 | Ex 4.2 | Ex 4.3 | Ex 4.4 | Ex 4.5
These answers are given merely to help with revision. In order to get full marks all working out must be shown.
| 1 | a) | 10 − 15a | |
| b) | 3x − 6xz + 2y − 4yz | ||
| c) | p2 − 11p + 24 | ||
| d) | 12 + 5x − 3x2 | ||
| 2 | a) | 9x2 − 6x + 1 | |
| b) | x2 + 9x + 10 | ||
| 5 | a) | 5(3 − x) | |
| b) | (x − 5)(x + 3) | ||
| c) | (x − 7)(x − 3) | ||
| d) | 2(x2 + 2x + 4) | ||
| 6 | a) | (4 − x)(3 − x) | |
| b) | (4 − x)(3 + x) | ||
| c) | (3 − a)(3 + a) | ||
| d) | (5 − x)(5 + x) | ||