Factorise the following polynomials: (a + b)^2 – 11(a + b) – 42

(i) (a + b)² – 11(a + b) – 42
(ii) 8 + 6(p + q) – 5(p + q)

Solution:

(i) (x – 2y)² – 6(x – 2y) + 5
(ii) 7 + 10(2x – 3y) – 8(2x – 3y)²

Solution:

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