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Question
Factorise the following:
`2sqrt(5)x^2 - 7x - 3sqrt(5)`
Sum
Solution
`2sqrt(5)x^2 - 7x - 3sqrt(5)`
= `2sqrt(5)x^2 - 10x + 3x - 3sqrt(5)`
= `2sqrt(5)x (x - sqrt(5)) + 3(x - sqrt(5))`
= `(x - sqrt(5))(2sqrt(5)x + 3)`.
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