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2022 EOY ACSI P1 Q4

2022 EOY ACSI P1 Q4

IP 2
5 marks

Factorise the following completely.

  1. \(28x^5 - 7x^3\),

    [2]

  2. \(3pq - 6pr + 2r - q\).

    [2]

  3. \(21 - x - 2x^2\)

    [1]

Solution:

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Answer:(a) \(7x^3(2x-1)(2x+1)\). (b) \((3p-1)(q-2r)\). (c) \((7+2x)(3-x)\).

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