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Question
Factorise the following.
y2 + 18x + 65
Sum
Solution
We have,
y2 + 18y + 65 = y2 + 13y + 5y + 5 × 13
= y(y + 13) + 5(y + 13)
= (y + 13)(y + 5)
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Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 235]
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