Q26 of 128 Page 224

Number of factors of (a + b)2 is

We can write as and this cannot be


Factorised further.


Hence, number of factors of is 2

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24

The common factor of 3ab and 2cd is

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An irreducible factor of 24x2y2 is

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The factorised form of 3x – 24 is

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The factors of x2 – 4 are