Sum
factorise: 3a2 - 5a + 2
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Solution
3a2 - 5a + 2
= 3a2 - 3a - 2a + 2
= 3a (a - 1) - 2(a - 1)
= (a - 1)(3a - 2)
Concept: Factorisation by Grouping
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