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Syllabus

Factorise: 2x2 + 5x - 18 -

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Question

Factorise: 2x2 + 5x - 18

Sum

Solution

2x2 + 5x - 18

= 2x2 + 9x - 4x - 18

= x(2x + 9) - 2(2x + 9)

= (2x + 9)(x - 2)

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Factorisation of a Quadratic Trinomial by Splitting the Middle Term
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