Kay Min's answer to Haneul's Secondary 2 Maths Singapore question.
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or (70+2w)(w)(2) + (w)(50)(2) = 1024
140w + 4w^2 + 100w = 1024
4w^2 + 240w - 1024 = 0
w^2 + 60w - 256 = 0
140w + 4w^2 + 100w = 1024
4w^2 + 240w - 1024 = 0
w^2 + 60w - 256 = 0
Date Posted:
6 months ago
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