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Question
factorise: x2 - 10xy + 24y2
Sum
Solution
x2 - 10xy + 24y2
= x2 - 6xy - 4xy + 24y2
= x(x - 6y) - 4y(x - 6y)
= (x - 6y) (x - 4y)
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Factorisation by Grouping
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