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secondary 2 | Maths
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mary
Mary

secondary 2 chevron_right Maths chevron_right Singapore

Hi, please provide the solutions for the above question. Thank you

Date Posted: 1 year ago
Views: 340

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Edi
Edi's answer
29 answers (A Helpful Person)
1st
Hope this helps
mary
Mary
1 year ago
Hi, thank you. May I check if I can let y+100=a and y-100=b
Then (y+100)² - (y-100)²
(using a²-b²=a-b, a+b)
If so, how do I continue from (y+100)² - (y-100)²
Edi
Edi
1 year ago
Very good thinking! Refer to the other photo!
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mary
Mary
1 year ago
Thank you so much