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Question
Factorise:
x2 + 9x + 18
Sum
Solution
x2 + 9x + 18
= x2 + 6x + 3x + 18
= x(x + 6) + 3(x + 6) ...[By splitting middle term]
= (x + 3)(x + 6)
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Factorisation of Polynomials
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Chapter 2: Polynomials - Exercise 2.3 [Page 21]
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