1. (a) |
5x |
(b) |
xy |
(c) |
z + 4 |
(d) |
b − 3 |
(e) |
3x + 4 |
(f) |
4c − 5 |
(g) | x/3 | (h) | (3 + x)/2 |
(i) | 24y | (j) | 100x |
2. (a) | {x, 2x, -4x} and {3, 4} | ||
(b) | {3a, a/2, -6a} and {-3b, 7b} | ||
(c) | {n, 4n} and {3n2, 2n2} | ||
3. (a) |
2q |
(b) |
4x |
(c) |
6ab |
(d) |
11x4 |
(e) |
2q2 |
(f) |
-3xy2 |
4. (a) |
x + 9y |
(b) |
11h − 3k |
(c) |
6x − 4 |
(d) |
5a + 15 |
(e) | 10pq − 8qr | (f) | 4ab + b |
5. (a) | 10m2 − 2m | ||
(b) | x2 + 5x − 10 | ||
(c) |
3x2 + 7x |
||
6. (a) | 18pq | ||
(b) | 24abc | ||
(c) | 150wyz |