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secondary 3 | A Maths
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jiaxian
Jiaxian

secondary 3 chevron_right A Maths

help Q2(ii)

Date Posted: 7 years ago
Views: 904
Shanie Tan
Shanie Tan
7 years ago
use formula

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Muhd Ilman Fahmi
Muhd Ilman Fahmi's answer
42 answers (Tutor Details)
1st
You already found a+b and ab. To get the equation with 2a^3 and 2b^3 as its roots, you need to do some manupilation to get the sum and the product of the new roots. Then you substitute to the equation and you get the answer. You can use the calculator to check if your answer matches from part i.

Give it a try. Hope it helps!