Solutions To Mathematics Textbooks/Pure Mathematics 1/Chapter 1

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Exercise 1A

1.

$9 x$
$p - 13$
$k - 4 m + 4 n$
$0$
$r + 2 s - 15 t$

2.

$4 (x + 2 y)$
$3 (4 a + 5 b - 6 c)$
$12 (6 f + 3 g - 4 h)$
$p (p - q + r)$
$12 k (k + 12 m - 6 n)$

3.

$28 (x + y)$
$7 b + 13 c$
$- p + 24 q + 33 r$
$2 (5 l + 3 w - h)$
$2 (w + 2 v)$

4.

$2 a b$
$k m - m n$
$2 p q - s q$
$4 x + 8$
$- 2$

5.

$6 x^{3} y^{2}$
$30 a^{3} b^{3} c^{4}$
$k^{2} m^{2} n^{2}$
$162 p^{4} q^{4} r^{4}$
$24 r^{2} s^{2} t^{2} u^{2}$

6.

$\frac{b}{c}$
$\frac{e}{2 f}$
$\frac{x}{5}$
$2 a$
$\frac{2}{p r}$

7.

8.

9.

10.

11.

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