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secondary 4 E Maths Singapore

qns 6 part c !! need help

Date Posted: 5 years ago

Alex Docherty

5 years ago

I can help

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Hope this helps. Becareful of the "sign" when doing expansion. =)

Date Posted: 5 years ago

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If you worked out x for pump A then for pump B just add on 21 from the answer A .

Date Posted: 5 years ago