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secondary 2 | Maths
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question 7a
Question 7a

secondary 2 chevron_right Maths chevron_right Singapore

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Date Posted: 3 years ago
Views: 396

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Haoyu
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2 answers (Tutor Details)
Take note that x^2 - 9 y ^2 is of the form a^2- b^2 and can be factorised into (a+b)(a-b) where a = x , b =3y