Q2 of 53 Page 77

Factorise:

x2 + 4x + 3

x2 + x + 3x + 3

= x(x + 1) + 3(x + 1)


= (x + 1)(x + 3)


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1

In the following, you are given the product pq and the sum p + q. Determine p and q:

pq = –44 and p + q = –7

 2

Factorise:

x2 + 6x + 8

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a2 + 5a + 6

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Factorise:

a2 – 5a + 6