Question 5

Factorise completely:

(a) \( x^2 + 5x + 6 \) (b) \( x^2 + 7x + 10 \) (c) \( x^2 + 4x + 3 \)
(d) \( x^2 + 9x + 14 \) (e) \( x^2 + 7x + 12 \) (f) \( x^2 + 9x + 20 \)
(g) \( x^2 + 11x + 18 \) (h) \( x^2 + 13x + 12 \) (i) \( x^2 + 10x + 24 \)
(j) \( x^2 + 9x + 18 \) (k) \( x^2 + 8x + 15 \) (l) \( x^2 + 12x + 32 \)

Question 6

Factorise completely:

(a) \( x^2 - 4x - 5\) (b) \( x^2 - x - 12\) (c) \( x^2 + 2x - 8\)
(d) \( x^2 - 10x + 24\) (e) \( x^2 + 10x + 21\) (f) \( x^2 + 2x - 15\)
(g) \( x^2 + 3x + 2\) (h) \( x^2 - 8x + 15\) (i) \( x^2 - 4x - 45\)
(j) \( x^2 - 5x + 4\) (k) \( x^2 + 4x - 21\) (l) \( x^2 - 11x + 18\)