Question 3(v)
Factorise the expressions
$(l m + l) + m + 1$

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Solution

$(l m + l) + m + 1 = l m + m + l + 1 m (l + 1) + 1 (l + 1) = (l + 1) (m + 1)$

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Question 1(ii)
Factorise the following expressions
$p^{2} - 10 p + 25$

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