Deriving factors of integers

Deriving factors of integers

Secondary 2

4 marks

TGM Original Questions

Factorise \(6x^2+13x+6\), then use a suitable value of \(x\) to find the prime factors of \(221\).[4]

Solution:

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Answer:\((3x+2)(2x+3)\); choosing \(x=5\) gives \(221=17\times13\).

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