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secondary 2 | Maths
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Send help for qn 4f , 5e and 5f thanks
Date Posted: 4 years ago
Views: 295
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done
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clear
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use memorise formula: a^2 - b^2 = (a+b)(a-b)
** always try to convert into a^2 - b^2
** always try to convert into a^2 - b^2
Date Posted:
4 years ago
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