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Secondary 1 | Maths
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Cindy
Cindy

Secondary 1 chevron_right Maths chevron_right Singapore

Please help. Thank you.

Date Posted: 3 years ago
Views: 392

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Zhe Xun
Zhe Xun's answer
113 answers (Tutor Details)
1st
Hope this helps
Cindy
Cindy
3 years ago
Thank you very much. Can help me with this factorisation?
2/5 st - 4/15 t
Zhe Xun
Zhe Xun
3 years ago
2/5st -4/15t
=t(2s/5 - 4/15)
=t(6s/15 - 4/15)
=t[(6s-4)/15]

= 6/15t(s - 2/3)
= 2/5t(s-2/3)

^can be done in 1 or 2 steps if you can viualize it well enough
Cindy
Cindy
3 years ago
But my ans sheet is 2/5 t (s-2/3 t).
Zhe Xun
Zhe Xun
3 years ago
Is it meant to be 2/5st - 4/15 t^2?
Cindy
Cindy
3 years ago
The question given is 2/5 st - 4/15 t.
Zhe Xun
Zhe Xun
3 years ago
In that case i dont understand why the ans has 2 “t”s. But i have added on to my original comment
Cindy
Cindy
3 years ago
Then maybe the answer sheet is wrong. Thank you for helping me.
Zhe Xun
Zhe Xun
3 years ago
No problem!