Question

1. Factorise the following expressions.
EXERCISE 14.2
(1) a² + 8a + 16
(ii) p2 - 10 p + 25
(iv) 49y2 + 84yz + 3622
(vi) 121b2-88bc + 16c2
(vii) (1 + m)2 - 41m (Hint: Expand (1-
(vii) a4 + 2a-b2 + 64​

Answer 1

a^2+8a+16

by splitting middle term method

a^2+4a+4a+16

a(a+4)+4(a+4)

(a+4)(a+4)

2) p^2-10p+25

by splitting middle term methods

p^2-5p-5p+25

p(p-5)-5(p-5)

(p-5)(p-5)

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