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secondary 2 | Maths
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Haneul
Haneul

secondary 2 chevron_right Maths chevron_right Singapore

Need detailed working

Date Posted: 4 months ago
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Kay Min
Kay Min's answer
64 answers (Tutor Details)
1st
or (70+2w)(w)(2) + (w)(50)(2) = 1024
140w + 4w^2 + 100w = 1024
4w^2 + 240w - 1024 = 0
w^2 + 60w - 256 = 0