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Question
secondary 4 | E Maths
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could anyone please explain how to solve this question? i still do not understand how to do this despite looking at the answer key. please and thank you!!
Date Posted: 2 months ago
Views: 51
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done
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clear
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See if this helps
Date Posted:
2 months ago
((5n+1)+(5n-1)) ((5n+1)-(5n-1))
=(10n) (2)
=20n
=(10n) (2)
=20n
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