Question

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O. Factorise the following expression.
(i) 63a²_112b2
(ii) 92-10q+21​

Answer 1

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i)p

2

+6p+8=p

2

+3×2p+9−9+8

=(p+3)

2

−1=(p+3−1)(p+3+1)

=(p+2)(p+4)

ii)q

2

−10q+21=q

2