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secondary 2 | Maths
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Jxinlim
Jxinlim

secondary 2 chevron_right Maths chevron_right Singapore

Pls help 5a

Date Posted: 1 month ago
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Erfana Beevee Binte Hassan Shariff
Erfana Beevee Binte Hassan Shariff's answer
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Notice that a^2 + 6a +9=(a+3)^2 and a^2+2ab+b^2=(a+b)^2. Using the rule, a^2-b^2=(a+b)(a-b), factories the numerator and denominator.