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secondary 2 | Maths
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Elysia
Elysia

secondary 2 chevron_right Maths chevron_right Singapore

pls help, thx

Date Posted: 4 years ago
Views: 313

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
A typical idea for such questions is to take their squares.
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Kayley
Kayley's answer
7 answers (Tutor Details)
Use the formula (a+b)^2 and (a-b)^2