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Question
factorise: 2a2 - 17ab + 26b2
Sum
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Solution
2a2 - 17ab + 26b2
= 2a2 - 13ab - 4ab + 26b2
= a(2a - 13b) - 2b(2a - 13b)
= (2a - 13b) (a - 2b)
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Factorisation by Grouping
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