1.What is the common factor for each of the following expressions?
|
(a) 2x + 4 |
(d) xy2 + y − y2 |
|
(b) 25p + 30 |
(e) 15c + 6cd |
|
(c) q2 − 3q |
(f) 3x + 9y + 12z |
2. Factorise, by taking out a common factor:
|
(a) 5x − 5y |
(d) 3s − 6t |
|
(b) 6a + 6b |
(e) 4p + 4q + 4r |
|
(c) 24p + 24q |
(f) 15x − 20y + 25z |
3. Factorise fully:
|
(a) 4x − 8 |
(d) 32j + 40k |
|
(b) 25p + 30 |
(e) 15c + 6d |
|
(c) 3q − 12r |
(f) 6x + 9y + 12z |
4. Factorise fully:
|
(a) ax + ay |
(d) xy2 + y − y2 |
|
(b) p2 + pq |
(e) 12c2 + 48cd |
|
(c) 3q 2 − 12q |
(f) 4x − 8x2 |
5. Factorise fully:
|
(a) 3x − 9 |
(d) 6x2 + 12x |
|
(b) 25e + 30f |
(e) 55c2 + 11cd |
|
(c) 9w2 − 12w |
(f) 3x2 + 9x + 12 |
